Galaxy Zoo Talk
It's certainly one or the other! Based on the faint features I think I'd go for a merger in progress (relatively early).
Yep, that's quite a bright foreground star! Just ignore it - and thanks! 😃
Great example of an X-shaped bulge too 😃
My brain is really trying to assign this any one of several animal names. Gorgeous!
Lovely #offset bar-disc system.
Yes, in this case the SDSS pipeline probably got confused because the foreground star happens to appear close to the center of the galaxy.
There are a few things that can make a galaxy appear red, but in this case I'm guessing there's some diffuse dust (dust reddens galaxies).
Wow, nice one!
Individual stars will definitely be in the foreground, in our own galaxy. This looks like an ongoing merger to me!
Nice - looks like there may be a more extended disk that we can only see the faintest hints of in this image.
Maybe s combination of the diffuse+star confusing the SDSS pipeline and people being more likely to comment here if there's a central star?
That would be cool! I suspect we'd need to have some detailed velocities to sort it all out.
I suspect that blue dot is an artifact, but I agree that fuzzier blue thing is probably a companion galaxy! Would need redshifts to be sure.
Looks like background galaxies to me 😃
Apologies, but I am not sure what that means? I don't see evidence of dust here in either the regular or inverted image. Could you clarify?
Hmm, I see a bunch of stars, some background galaxies, and a faint dwarf galaxy in the central position?
Yes, as @ElisabethB said: the bright spot is likely just the central galaxy brightness which looks distinct b/c of how the imgs were made.
I see brighter areas of star formation and darker areas with less of it, but while there probably is dust in there it's hard to see where.
I agree with @Ghost_Sheep_SWR's assessment. Enough disturbances I'd suspect this is a merger remnant.
Those little blobs are, statistically speaking, likely to be background galaxies instead of nearby companions.
"white" here means it's not really dominant in any particular color, so it might just be a compact normal galaxy, i.e. just a fuzzy blob! 😄
What a great example!
...though it did get a mention in a paper about bulgeless galaxies and one about AGN. What an interesting feature it has.
I'm betting a lot of those references are papers that are just generally about the GOODS and CANDELS surveys...
Nice catch! 😃
Looks like a gorgeous spiral to me! 😃
The "already seen" banner won't be in GZ until we move to the new platform... Are you getting more duplicates than this one?
Yes, we might call these clumps or star-forming knots (rather large ones) but bulges are almost always 1 to a galaxy.
Great example of a simulated spiral with a bar 😃 looks like it may be interacting too!
Hahah! This looks like a slow-moving satellite to me - the faster ones streak all the way across the image during an exposure.
Cool - it almost looks like a simulated polar ring galaxy. The good news is we could actually look up the velocities and check for sure!
I also agree it visually looks like something's up with the nucleus, either AGN or star cluster. There's no spectrum, though! 😦
...system like the one GZ PhD student Sandor Kruk just wrote a paper about: https://ui.adsabs.harvard.edu/#abs/2017MNRAS.469.3363K/abstract
It's possible it's had a minor interaction with a much smaller galaxy and that's caused the asymmetry seen here. This could be an offset...
Interesting - zooming out using SDSS SkyServer I don't see anything nearby of similar size that would tidally disturb this galaxy.
Could be an artifact or a foreground star that was in the sky fields the Illustris team used to create the simulated images.
(I think by "blanket" you might mean galaxies that aren't physically close to one another but appear to overlap on the sky?)
This is a spectroscopically confirmed close pair, not an overlap: http://adsabs.harvard.edu/cgi-bin/bib_query?2006AJ....132..197W
This looks pretty disrupted to me, so I'd go for a merger instead of an overlap (I'd expect an overlap to have undisturbed galaxies).
The blue streak is a satellite trail, and the central object is a galaxy 😃
This galaxy is from the Illustris simulations and sometimes they do have these dramatic rings! Thanks for classifying 😃
The object in the center is a galaxy, but it's looking through a quite dense part of our own galaxy, so there are lots of foreground stars.
The orange bit looks like an artifact to me, so the galaxy is the more blobby bit in the center -- definitely not edge-on 😃
#offsetbar (the center of the bar and the center of the disk aren't in the same place)
Nice spot, @SpartanEngineer247!
That's a galaxy in the middle and a very bright star (from our own galaxy) below it. Just ignore the star and classify the galaxy itself.
That stripey thing looks like an artifact to me... the galaxy you want to classify is the small blue thing in the middle. #badzoom
It's an interacting pair of galaxies. After classifying the central galaxy, you can indicate the interaction on the last question. Thanks!
It's a DECaLS artifact from a very bright star nearby. Click on "Galaxy Zoo examine", then "DECaLS SkyViewer", then zoom out. 😃
What a lovely image!
I don't think there's enough information to say that for sure. Rings can be evidence of past mergers, but they aren't necessarily so.
Could be an overlap, but I'm betting it's a galaxy-galaxy interaction in progress. Further data could confirm it. Cool!
The green and red streaks are image artifacts; just ignore them. I suspect this is a nice #overlap!
It does look odd, but it's just an artifact sometimes seen with really bright stars. Thanks for classifying!
(c) question is always the last question, so ignore the off-center galaxy until you get to that question. Happy classifying, and thanks!
Always classify the source in the middle of the image... it looks disturbed and like it may be merging with the other galaxy. The merger (c)
Could be. It would take a decomposition of the light profile (from the original data) to tell for sure!
agreed, and there may be some interaction going on with that small satellite that's making one edge stretch out.
Well spotted! I think there's another component there too, almost like a second, small edge-on disk. Wonder what it would look like face-on!
Lovely example, even with the artifact 😃
I wonder if maybe higher-resolution imaging would clarify whether the slightly darker bit on the "bottom" edge of the disk is from dust?
Some nice unresolved nuclear emission there too...
Looks to me like a coincidental overlap of a galaxy and a foreground star that fooled the computers 😃
Worth trying MAST?
https://archive.stsci.edu - Not sure I'm seeing obviously matching images though.
I'm guessing polar, as the SDSS spectrum doesn't seem to show an AGN. Maybe remnant trails of a lower-mass satellite merger? Cool!
This is a simulated galaxy, and it looks like it has a ring of active star formation (blue) among the older (red) stars!
The pink cores are artifacts, and the stripes of pink pixels are too.
Looks like a background galaxy (or galaxies) to me. Thanks for classifying! 😃
Yes, lots of galaxies here, a few stars and even a few artifacts!
This is one of my favorite HST images in GZ!
I don't think there are gravitational lenses in the Illustris simulations. Those could be shells, though.
What an interesting simulated galaxy. How'd that work? And didn't we have something in DECaLS or SDSS that looked a bit similar recently?
I agree 😃 it's not easy to make out, but it's definitely not smooth!
This particular stripe looks like a chip artifact to me, though often other ray-like emission is from a bright nearby star.
This image is really, really neat!
It's misaligned with the galaxy nucleus, and it does look similar to the stars in the field, so it could be a star.
Turns out we can get "can't tell" as a classification from the distribution of "guess" classifications, so don't worry, best guess will do!
Could be two cores or some dust going through the center. I'd say either one of those rather than a background overlap.
Whoops, yeah, this probably was meant to have been a little more zoomed-in!
Beautiful #ring as well! Worth checking whether this is a bulgeless AGN. 😃 Thank you!
I suspect the off-center point is a foreground star (it looks like a slightly smaller version of the star at the top right).
I definitely see what you mean, but x-shaped bulges are generally seen edge on! 😃
What a lovely example of a merger in progress.
#decals_red_artifact (more in the discussion linked at right)
What a lovely example.
Looks like it to me!
I don't think this is part of one of the Illustris background fields, so it's probably not a star. Wonder what it is. Cool.
Cool! This reminds me a bit of a CANDELS galaxy I saw at one point... AGZ00001xv
It would be great to find other examples like this!
Beautiful tidal streams!
What a lovely example!
Foreground star, I believe 😃
The DECaLS data is quite deep so I expect we'll be seeing a lot more of these faint tidal features!
I'm not 100% sure but I think these simulations may not have the physics to create voorwerpjes?
Yep, I predict we're going to see a lot of new and interesting configurations in the Illustris images...
I agree there's some interesting tidal features here, but the wispy parts of this galaxy are light from stars, not gas.
#artifact - something went really wrong with the imaging. Pretty, though!
Each of these are stars in our galaxy.
Alas, this is an #artifact.
Unfortunately I think this is just a couple of smooth galaxies, not bulgeless.
Lovely. Wish we could get deeper imaging on this one!
Wow, yes, as ElisabethB said, those are some funky not-realistic colors!
This is an #artifact - something went badly wrong with the imaging. #no_lens, sorry. 😦
Telescope out of focus -- these are most likely all stars. Just mark as #artifact...
Telescope was out of focus 😃
That looks real to me, but this field looks a bit fuzzy and not really high quality.
Yes, I'd just say #artifact and move on!
Looks like something went a bit wrong in the zoom for this image!
Just a bright star in an out-of-focus field. #artifact
I'm glad you're enjoying this 😃
Probably not much gravitational distortion or lensing... just a lot going on in this spiral! 😃
Hard to tell - image quality very poor in this field. Could just be 2 stars.
It's a galaxy but overly zoomed in - looks like the algorithm got the size wrong for some reason.
Welcome, and thank you for classifying!
Agreed, this image is pretty shallow, so if there are signs of interaction they're probably lost in the noise.
What a lovely pair!
Looks like the artifact made the source's automatically-determined size way too big?
A barely-there galaxy 😃
...given the faint appearance in SDSS of even a bright, gorgeous spiral like AGZ00080ae I'm not sure an SDSS non-detection is meaningful.
...unfortunately we didn't have enough information at the time to say for sure either way.
This is going to sound weird, but I recognize this galaxy. We were looking at clumpy galaxies with possible AGN and this was a candidate...
Hmm. Not sure. NED has no publications referring to a SN and this field was observed 5 times by HST for a SN search...
It does look a little like a flower, but actually it's a star 😃
The blue dot looks like an artifact to me. (Sorry.) Thanks for classifying!
Really hard to tell from this image -- there's enough noise that I can't see whether there are any faint connecting features.
What marks this as disturbed for you? Looks pretty undisturbed to me...
I'm not surprised NED isn't completely up to date when it comes to the CANDELS fields...
These are real and not artifacts. 😃 Thank you!
Correct -- please always classify the galaxy in the center (sometimes you're asked if you think it's interacting with others). Thank you!
More likely another galaxy than a nebula -- these images are really very small on the sky. Even a small nebula would be huge!
It's a diffraction spike from a nearby bright star. They do make rainbows sometimes, unlike satellite trails, which are always 1 color.
They are artifacts from the CCD chip -- the vivid color and jagged edges give them away. Thanks! 😃
Ooh, yes, lot of artifacts in this one too.
Yes, that's definitely what it is. The way a star appears varies slightly with wavelength so the diffraction spikes can look like a rainbow.
@ramberts, at least some of the more recent papers might have counterparts at http://xxx.lanl.gov/archive/astro-ph that are free to read.
I can't find a z=6.7 -- the first line of the NED source match is z = 1 or so? Either way it's possible this is an AGN, yes.
You can use the #lens tag here if you think it's a candidate! I'm not sure the geometry is right for this one, though...
This looks like a reasonable colour for CANDELS data (which is what this is) to me...
This one's just distant and faint, but I agree with your first instinct...
Hubble could detect voorwerpjes, but they'd likely be redshifted out of the blue bands...
Huh, that's weird! Usually there's at least an artifact or something.
Looks like an image right on the edge of a camera chip, where there are a lot of artifacts...
Agreed, just looks like a dust lane to me, not a lens (which would be bright, not dark)...
This is a great example of how much more information Hubble gives on the morphology than SDSS for even a moderate-redshift galaxy! 😃
Possibly a good image for Zooniverse galaxy of the week? Along with AGZ00087ah ? #ZGOTW
PS - this group has also been imaged with an optical HST camera that's ~2x better resolution: AGZ00084ni
Above is from an infrared camera.
This doesn't visually look like a QSO to me -- just looks like a clumpy star-forming galaxy.
A QSO will usually have a bright point-like source, i.e. it may look like a star, possibly without a galaxy! This probably isn't one.
edge-of-chip artifact would be my guess...
Agreed - for a lot of them the roundedness, plus whether you think it's in a merger or interaction, is the only thing to say. Thank you!
Yep -- because we're looking farther back in time the farther away we look, we expect younger galaxies may look really different! 😃
If you held up a strand of hair at arm's length in front of this part of the sky its width would cover these galaxies! This is high-res!😃
I bet this was near the edge of the camera chip in red and green! Funny artifacts sometimes happen at the edge of a chip.
Good catch, @ElisabethB! Before looking at the context this looks like a really interesting voorwerpje. Ah, well.
It's possible, but there are a lot of stars in our own galaxy so lots of galaxy images have foreground stars over the top! 😃
Merger for me!
Looks like it to me -- a lovely example!
Lots of artifacts in and around this image, including this one. Just ignore it and classify the galaxy itself. Thank you! 😃
Is it? It's extended -- which is what SDSS means with the GALAXY tag -- but it's only in 1 filter, so it's not likely to be a galaxy.
Wow! Yeah, I'd definitely go for #artifact on this one! 😃
Just to clarify for other volunteers: the central object is definitely a galaxy; please ignore the star to the left when classifying.
Yeah, I can see that too. It's an interesting feature because the galaxy is otherwise smooth.
Agreed, I don't really see evidence from the image or the SDSS information that this is an AGN.
Not a planet -- it's just an artifact. Thanks for classifying!
These are definitely stars, in an area of the survey with not-so-great imaging!
Something went weird with the telescope here -- this could just be 2 stars next to each other on the sky. #artifact
The object below this galaxy is definitely an AGN, so it looks like this may be interaction-induced.
I don't see any evidence of other disturbances consistent with a merger...
Something went weird with the imaging! More information here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Stars aren't resolved, but the focus is fine; in images like this the brighter stars have spikes and the central part appears larger.
Alas, this is either a star or galaxy where something went very wrong with the imaging. #artifact
Something went very wrong with the imaging -- more info here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Indeed. I'd just mark this as #artifact.
These are all stars but the image quality is terrible...
Yes, well spotted! 😃
Those are regions of strong star formation! They're blue because the starforming gaseous clouds reflect more blue light back to us than red.
Ooh, yes, this is definitely pure #art 😃
This is definitely a crowded one! But at least the central galaxy is still classifiable. 😃
I don't think this is in Stripe 82 (haven't checked); shame as I bet the extra deep images would show awesome features.
Hmm. Probably? Something went wrong while taking this image, so I'd just mark it as star/#artifact. Thanks for classifying!
These do look a bit disturbed to me and it's easier to see on either an inverted image or in the raw images... merger for me. Thanks!
This is a galaxy, with many billions of stars, not an individual star gone supernova. Most things you see here are galaxies.
Agreed, it's really lovely!
Definitely classify this as "Star or Artifact". It's actually both: it'd be a star image if it weren't an #artifact, as Els says below. 😃
Something went very, very wrong with the imaging here -- feel free to mark it as star or #artifact. Thank you for classifying!
In the meantime, for fun, the zoomed-out image: http://skyserver.sdss3.org/dr8/en/tools/chart/chart.asp?ra=350.17080378&dec=72.39781088
With such poor imaging I agree it's hard to tell, but this is most likely a star. Maybe we'll have better imaging in the future! #artifact
I agree, it could just be that the disk is nearly too faint to be seen. There's probably dust there but not necessarily more than elsewhere.
Lovely example. Thank you for classifying!
Oh, how I'd love to get some deeper images of this so we could tell the difference! 😃
Agreed, the image quality isn't great as apparently the atmospheric conditions weren't good for sharp images when this was taken.
Yes, definitely an #artifact .
Looks like something went a bit wrong with the imaging -- I'd mark this as an #artifact. Thank you for classifying!
Hard to tell about the bulge of the central galaxy (the small one). The larger galaxy beneath it definitely has a bulge.
Yep, what ElisabethB said. Thank you for classifying!
What a lovely merger. 😃
I don't think there are any visible globular clusters in this image. Everything is either a galaxy or a star (the small not-fuzzy ones).
Looks like something went weird with the imaging here -- these are artifacts. Thank you for classifying!
Really interesting warp as well. Thanks for classifying!
Well, that's just lovely. #ZGOTW
Looks like an artifact -- something was not quite right with the imaging. Thanks for classifying!
PPS - jargon alert: SMBH = supermassive black hole 😃
PS - the QSO redshift is quite low so my guess is it's not a background object.
This is really interesting. A QSO at that position implies there's a SMBH well outside of either disk. What?
Lovely example, and the IR image is really interesting. I'm curious to know how you're finding so many of these all at once! 😃
It is two stars, but it could easily just be a chance coincidence on the sky as well. Thanks for classifying!
Lovely; it will get added to the NGC collection if you tag it like this (with a space): #NGC 2930
Just a foreground star, but the galaxy is still classifiable.
QSO based on what? I don't see a spectrum in SDSS, nor an X-ray match...
Good question! Might be worth asking @NGC3314 about it...
I should note as well that in a binary system 2 stars wouldn't accrete matter onto a 3rd area; one could strip matter off the other though.
Looks like 3 stars to me; these images don't really have the resolution to see stellar accretion in binary systems.
It's a satellite trail. Satellites pass over so quickly they are usually only in 1 filter (meaning 1 color). It's an #artifact. Thanks!
Definitely a galaxy -- thank you for classifying! 😃
Nice bit of artifact #Art 😃
Your call! To me they seem undisturbed so it's an #overlap, but others might not agree and it's not immediately clear which is correct.
Well spotted though, and thanks for asking and for classifying!
Good question, but I don't think so: SDSS has 2 images 60 days apart and the source is the same brightness. A SN should fade. Likely a star.
And another piece of pure #art 😃
Lovely -- we are seeing this galaxy through our own galactic disk, which obscures and reddens the other galaxy's light. Definitely a #bar !
Just tagging with #UGC!
Nice asteroid find!
The galaxy is absolutely breathtaking. One of @NGC3314 's favorites, I suspect!
These are all stars -- it was a pretty turbulent night of observing & they're close together so the computer thought they were galaxies.
#NGC 5789 - lovely.
The smaller circular sources here are stars in our galaxy; the source in the center is a distant galaxy. Thanks for classifying!
Yes, it's a star. 😃 Also an #artifact
More on common artifacts here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
These look like stars in our galaxy; when the atmosphere blurring is high & they're close together the computer confuses them for galaxies.
Yes, exactly like the pure art thread! I love that thread.
Agreed, it's a work of #Art 😃
Some #edgeon disks will have a little hint of a warp at one or both edges... nice find!
The images are tuned to show galaxies as well as possible so bright stars (blue object at left) sometimes look a bit odd!
I sort of feel like things like this should be in a collection called #Art or something.
Just some stars observed on a very turbulent/blurry night, I'm afraid... thanks for classifying!
Indeed, what a lovely #dustlane!
Gorgeous! #UGC 04550
This one is a #satellitetrail. Thanks for classifying!
There's a bright star just out of frame and it's causing this artifact: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
This is a #satellitetrail -- more info here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Oops, something went weird in the imaging! More info here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
This is an artifact; more info here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
The red object looks to me like a star from our galaxy, so very much in front of the galaxy.
#UGC 12915 and possibly #ZGOTW ?
Looks like #NGC 5033 is about 19 Mpc (64,000,000 light-years) away and emits at all wavelengths from radio to X-ray. Also: spectacular!
According to NED, this galaxy is ~110,000,000 light-years away and has been observed at wavelengths from radio to ultraviolet.
What a gorgeous #NGC spiral!
Looks like the telescope had a bit of a wander during the green exposure! 😃
Two stars that happen to coincide on the sky -- the image is fuzzy and the computer got confused so thought it was a galaxy!
The galaxy in the middle (which is the one you should classify) doesn't look very edge-on to me...
The tidal tails created by mergers can mimic spiral arms, so it's often hard to tell. Thanks for classifying!
Yes, definitely an artifact! These sources nearly all look like stars, albeit blurry ones as the observing conditions weren't great.
Lovely merger in progress.
Feel free to tag this with #artifact as well. Thank you for classifying!
This happens when the telescope goes out of focus in at least 1 color: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Something definitely went weird when the telescope imaged the red band! Some of our volunteers call this the "cosmic scarf". 😃
I see some disturbances here -- I think it's quite possibly a merger, yes. Thank you for classifying!
Yes, something went a little weird with the telescope when it took the green-filter image. I think these are all stars.
I bet the target is that absolutely tiny smudge in the middle of the image; the algorithm was definitely confused by all the stars here!
Not really; this is just a coincidental overlap of two stars in our own galaxy.
Could also be a little background galaxy, but I agree a foreground star is more likely. SkyServer says galaxy but could be confused.
Agreed, this is probably an overlap. Thank you for classifying! 😃
Cool - seems unlikely as it's perhaps too small a galaxy but I definitely see that arc as well!
Where is the asteroid? I can't see it.
By the way, it makes it easier to search for this later if you start the tag with a # character. 😃
Looks like a bit of a shift going on between the filters rather than a real effect. Thanks for classifying!
I'm not surprised that DR8 isn't helpful, as this whole thing is probably only a few pixels in size in SDSS! 😃
Agreed, I suspect the purplish bits are just noise, but I would definitely believe #overlap! 😃
It's perfectly fine to not be sure -- that's part of why we ask several people to classify each galaxy. Thank you for your contribution!
In SDSS: http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237661125617123443
Looks like a merger to me...
Only the central object here is a galaxy -- the round white/yellow sources are stars in our galaxy.
This is a star, but in a section of the sky where the telescope was not quite behaving! #artifact
I agree it looks a little weird, but in SDSS it's there too so there does appear to be a central stellar bulge here.
Normally a dot looking like that is a star, but in this case it looks like it's the nucleus of the galaxy.
Lovely example -- and in the SDSS image (click examine + SkyServer) you can see a big dust lane in the larger one.
This is a great example of how UKIDSS lets you see through the dust (reddened disk) compared to SDSS (click Examine, then SkyServer). Cool!
Ooh, that's lovely!
Looking into the mistake. I'll start a discussion so we can chat about this more than 140 characters at a time!
This is definitely the wrong part of the sky in UKIDSS, and we're looking into it. Thanks for spotting it!
More info on weird artifacts here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
I wonder if there might be an unresolved source of emission at the center of this. Those points of color sort of look like PSF wings.
A diffraction spike of a star going through another star on the image -- cool!
What is that arc feature at 1:00 on the face of the galaxy? Surely this isn't massive enough to be a #lens. Photometric z = 0.7.
Looking at SkyServer shows this is actually a different kind of artifact, probably a tracking problem.
Sometimes satellites are rotating or tumbling and change their reflectiveness in the middle of an orbit, but this is a pretty steep change!
Definitely a data artifact. More here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Thanks for classifying!
It's a satellite trail; more information on weird artifacts here:
Yes, until this bug is fixed, all the SkyServer links for artificially redshifted galaxies will break...
Definitely. We get to learn a whole new set of common artifacts for UKIDSS...
Alternatively, you can change from the DR8 to the DR7 SkyServer URL: http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587739376699506822
(Meantime I'm about to report the bug to the developers. Thank you for confirming it!)
Yes, I've just noticed something is a bit odd with the object ID search in SDSS... it's a bug. Try an RA, dec search and it'll be there.
Definitely a #satellitetrail. More info here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
At a more intermediate distance the same galaxy would look more like:
It's how this galaxy:
would appear at high redshift.
I suspect most of the very compact spots are actually foreground stars. They look a bit different in UKIDSS than SDSS...
This is an artifact -- more info here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Lovely Hubble galaxy. I think I see a #dustlane...
Actually I think the object of interest is the small red blob... the blue object looks like a foreground star from our own galaxy. Thanks!
The blue-purple source on the right is a bright star from our own galaxy. They look different in UKIDSS compared to SDSS!
Very possibly! I wonder if this turned out to be a lens?
Note: no comets here.
SDSS is flipped vertically, but comparing them shows that this galaxy has few old stars (UKIDSS) vs light from new ones (blue SDSS).
Interesting; if you click to view it in GZ Examine and then click the SkyServer link, you can see the SDSS (optical) image...
And a #bar as well, I think?
Yes, the middle is very blue -- here's how it looked in Galaxy Zoo before the CANDELS data: http://zoo3.galaxyzoo.org/examine/AHZ2000zh8
The compact blue object is a foreground #star in our own galaxy. Thanks for classifying!
..but neither really looks a lot like this object. CANDELS is a little lower-resolution than the previous HZ camera, though. Hard to tell.
Huh. Closest I can see in GZH is http://zoo3.galaxyzoo.org/examine/AHZ400084u or maybe http://zoo3.galaxyzoo.org/examine/AHZ400084u ...
I'm not sure there's enough information to tell -- I don't really see evidence of tidal features, but some of the shapes are disturbed.
Looks like it to me! I haven't seen a lot of those in Hubble images -- cool.
Maybe there's a tiny, faint galaxy in the center, but it looks to me like the computer thought the artifact from a bright star was a galaxy.
That's not a gas cloud; essentially all the light you see here is from stars, which are most concentrated in the center.
Agreed, it does look to me like a nearly edge-on disk with some foreground stars. Thanks for classifying!
And there are lots more like it! Some of our most common artifacts: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
It is a galaxy, or possibly two, but it's extremely distant so it's faint and hard to see (very zoomed-in). Thanks!
Definitely some hot pixels in there! You might see a few more details (if there are any) if you click "Invert" while classifying...
Looks like maybe a chip gap -- definitely an artifact, but the blue line is not a satellite trail.
The objects in CANDELS images are too distant to see globular clusters -- these are all galaxies. Thanks!
More info on weird images here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
This is the SDSS pipeline getting confused when the galaxy is really big. The image is also cut off. 😃
This is a satellite trail: more info here http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh - thanks for classifying!
This one does look particularly weird, but you're right, it's just an artifact due to the bright star. Thanks!
We call them stars instead 😃 but they are all big balls of gas.
I think this is more like something a bit weird with the guider/tracking in the green filter, rather than a satellite or #doooomed. Thanks!
It's an artifact from a star just off the image. More here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Also a decent d or p in the galactic #alphabet 😃
Definitely a bit of a mismatch with the blue image positions... luckily the galaxies still seem classifiable!
Could also be an #AGN but I don't see evidence of that in NED unless I missed it. No SDSS spectrum.
nohashtag test 😃 (also didn't end with unbold command)
It's a star. The weird colors are artifacts. Thanks for classifying!
Use the examine link to view in SkyServer. (Zoom via clicking on the thumbnail or on "Navigate.") The "tail" is a spike from another star!
Definitely not a lens. Could be a merger or an overlap -- what do you think?
Alas, the central object here is the #satellitetrail -- the other galaxies will have their own images! 😃
More on weird artifacts here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
#boxy or peanut bulge as well?
Looks that way to me.
A star -- but something went wrong with the imaging: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
It's a satellite trail. More here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Nothing here that screams quasar to me...
More info: click Examine above, then SkyServer. Or: http://skyserver.sdss3.org/dr8/en/tools/chart/chart.asp?ra=358.83432485&dec=30.38637663
The central one, though it's a bit difficult here! Bad zoom: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
That is a very bright star at left.
The bluish points are foreground stars from our galaxy. Thanks for classifying!
More on strange artifacts here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
The central object is definitely a galaxy. The brighter, round object toward the top left is a star.
I suspect that is a dust lane making the yellowish light look redder (and fainter).
These are probably stars where something went wrong with the imaging: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Nope, this is an artifact: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
It's a diffraction spike from a very bright star nearby; unlucky placement! (Click on examine, then SkyServer, then Navigate & zoom out.)
To find out more about this, click on "Galaxy Zoo examine" below the image, and then check SkyServer or NED to see what else exists. Thanks!
Click on "Galaxy Zoo examine" below the image, and then "View in SkyServer" -- this is a normal galaxy right next to a bright star.
#artifact -- something went weird with the imaging. More info here: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
PS -- always classify the central galaxy. 😃 (I'm sure you know that, just stating it for others passing by.)
I suspect that's the tip of a diffraction spike from a bright star off the image. When links to SkyServer come back you can check!
Looks like an irregular galaxy to me.
Note: quasars can look like stars but they actually live in distant galaxies, which can merge with other galaxies. But those are very rare!
This galaxy is millions of light years away, so it wouldn't merge with a foreground star from our own galaxy.
Looks to me like it's a tidal feature, which is a sign of disturbance.
Yes; well spotted!
I believe the compact object just off-center is a star; the central object is a galaxy. Could be a late-stage merger product.
http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh for more info 😃
Yes -- the smaller orange/red dots are stars too, but much fainter, so they don't cause all those oddities!
This is an example of a galaxy that is classifiable despite something being a bit off with the image. Thanks for classifying!
Thanks for classifying! Did you have a specific question or comment about this galaxy?
Lovely. If that greenish emission were blue (in these images) I'd have said #voorwerpje as well.
Definitely an artifact -- we see these sometimes: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Ooops. Something went a little wrong. More on weird artifacts we see: http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Just a foreground star from our own galaxy. 😃
I wouldn't be surprised if this turned out to be an #overlap. I agree it's a nice edge-on bulgeless example -- thanks for classifying!
Always classify the central object. Thanks for your classifications!
The bright orange bit is a star in our own galaxy. However: please always classify the central object. Thank you!
These look like stars in our galaxy in an area of the sky where something is a little off with the imaging quality.
Many galaxies have multiple names!
Yes, the blue object at the top of the image is a star, but thankfully it's not in the way of the central object. Thanks for classifying!
And artifact! 😃 http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
...but that would definitely have to be verified by some other method.
Sorry, to clarify, by AGN I meant that it looks very nearly, but not quite, like a star. Not much host galaxy, just a bright point source...
... that paper reference is here: http://adsabs.harvard.edu/cgi-bin/bib_query?1888MmRAS..49....1D
These galaxies were in an 1888 update to Sir John F. W. Herschel's catalog of nebulae, making them a part of history as well as astronomy...
Also, even if the red object were a red giant (i.e. large in radius), it wouldn't necessarily be more massive than the other stars shown.
These are all stars in our galaxy, but it's not necessarily the case that they're all physics nearby each other. ...
Always classify the central object -- whatever you think that includes. Thank you!
This may be a galaxy but it also has a bright unresolved source, so I'd say it's a good candidate for being an AGN.
This is most likely a star, seen by Hubble...
I doubt it -- that just looks like noise to me.
It's a #satellitetrail. More info on weird images here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Lovely #dust_lane as well.
Something went a little funny with the imaging -- more on weird artifacts here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Wow. More on weird images at http://talk.galaxyzoo.org/help/discussions/DGZ1006byh but that's definitely an #artifact as pure art!
Most likely they're just chip artifacts, not real sources. Thanks for classifying!
Alas, "planetary nebula" is a slightly unfortunate name -- PNe have nothing to do with planets, neutron stars, or even whole galaxies.
Not sure I see any clear signs of tidal debris here -- I do see a lot of image noise, though...
Just a bit noisy. A green pea in the Hubble data could also show up as blue or red... and it might not look like a pea! Sorry...
...it's definitely interacting with the galaxy that appears as a tiny little smudge at 7:00!
I really wish the auto-scaling was different on this one. Increasing the brightness reveals much more structure & a tidal feature...
Something went wrong during the imaging. More on weird images and artifacts here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
This is not HST, but an SDSS image of a distant galaxy. The speckling is noise, not individual stars. Thanks for classifying!
I agree that blue spot is an interesting feature!
Looks like a pretty crowded star field that didn't get marked as stars for some reason -- but they all are!
Could be... but it's got a bit of extended emission in there so I'm guessing it's a galaxy with a bright point source, possibly an #AGN.
I like that tag! Hope it catches on...
If you click on "Galaxy Zoo examine" and then "View on SkyServer" you can see lots more info & then click "Navigate" to zoom and pan!
Yes, I'd say the possible signs of interaction make this a #merger candidate...
I'm guessing #AGN -- note the blue filter is slightly different so the centers appear misaligned.
The green-yellow ball is a star in our own galaxy -- the spiral is behind it (and interesting)!
This is almost certainly an artifact -- more here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Thanks for classifying!
Yes, just an incredibly distant and faint one! One of the faintest, I'd say. Thanks for classifying!
Quite possibly -- but do always classify the central object, please. Thanks for classifying!
See examples of artifacts and asteroids here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
They're stars, although there is a blurry aspect in the blue filter that's a bit unusual. Just an artifact though.
Just an artifact that sometimes happens with bright stars in particular. Thanks for classifying!
Asteroids look like tiny little stoplights/straight rainbows on the image... the two white round objects are stars from our galaxy.
Definitely an artifact!
More info here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
All the objects in this image are (slightly out of focus) stars.
They often are! Our own @klmasters has studied this question using GZ classifications. Thanks for your contributions!
Yep! Sorry, we tried to get rid of as many of these as possible but it's not always easy... but thank you for classifying!
Just an illusion -- the other things are stars in our galaxy so unrelated to the central galaxy in the image. Thanks for classifying!
Definitely classify whatever's in the center, even if it's not the brightest thing in the image. Thanks!
Artifact 😃 More examples here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Definitely a merger remnant that's still settling -- some gorgeous tidal features on SkyServer!
Satellite trail! For more weird examples try here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
This is too perfectly straight to be a dust lane -- looks like an artifact to me.
Stars -- plus the telescope is acting a little funny. More info on artifacts here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Looks like the computer decided the bright star-forming knot in the middle of the image was its own galaxy!
A dust lane would be darker than its surroundings -- this is a tidal feature and a sign of a possible #merger as well.
It's a moderately bright star from our galaxy.
There's a star just outside the image reflecting light into the lens -- more here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
These are very distant galaxies with a faint tidal bridge between them, so I'd say this is a #merger in progress. Thanks for classifying!
It's definitely pretty bright... not sure whether it has a name other than the string of numbers in the SDSS catalog!
This sometimes happens when something goes a bit... weird... at the telescope: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Looks like a chain of foreground stars to me...
It's definitely very distant as it looks too extended to be a star and it's in the Hubble fields. My guess is that this is an #AGN...
Hard to tell with this one!
Looks like a #star as seen by Hubble! More info here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
The green dot is almost certainly an artifact. I don't see any signs of disturbance or interaction so I'd be unlikely to call this a merger.
I like to call them #olivesinspace, but that's just me. It's an artifact: more at http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Aside from the galaxy, nearly all the other round objects in the image are stars in our galaxy, so yes, you're right!
It's a satellite trail! More info here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Looks to me like a chance alignment of two stars and a galaxy!
This is a #satellitetrail. More info on the different artifacts we sometimes see at http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
This is an artifact due to very #poorimagequality in the green filter (and possibly the others too).
Most likely the nucleus is so bright it gets imaged like a star so those are diffraction spikes (parallel with those of the star below it).
Yes, this was right on the edge of the chip in two of the three filters. Very faint!
Looks like an #overlap to me!
These are all stars, but the telescope clearly wasn't having a great night so it's pretty #poorimagequality.
Yes, definitely a star-forming nebula in our own galaxy!
In that case feel free to tag it as an #overlap instead of a merger -- thanks for classifying!
Also, if you click on Examine above and then View on SkyServer you can sometimes find enough information to tell whether it's a merger.
The end of http://talk.galaxyzoo.org/help/discussions/DGZ1006byh has some info; in this I can see a bridge between them so #merger for me...
Many stars aren't bright enough for the spikes to show up on these images. In fact, most stars in SDSS don't have diffraction spikes!
The point at the very top left is probably a star, but otherwise yes!
Something went wrong with the imaging!
More information here: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
I'll bet this is an #AGN. Just a hunch.
Most likely every object in this image is a star from our galaxy (a bit out of focus, perhaps).
Yes, this is a star seen by Hubble -- not as bright as those at http://talk.galaxyzoo.org/help/discussions/DGZ1006byh but definitely a star.
Specz/photz indicate same-redshift: merger. Also another nearby galaxy at same distance too so part of a group...
In the Hubble images even very faint signs of tidal interaction are pretty strong indicators of disturbance/mergers.
The latter -- these are all stars. Nice catch.
Definitely a pair of galaxies in a merger.
Nice catch on the possible voorwerpje!
And this is definitely a merger.
Signs of tidal interaction and disturbance so my vote would be merger too.
As both of the redshifts are the same, these are indeed interacting and not merely overlapping, so I'd have tagged it #merger too.
Stars can emit X-rays & radio too but these are so far away that X-ray/radio emission is likely from an AGN. Haven't checked for sure yet.
It's hard to say for sure without redshifts but I agree the signs of disturbance point to an ongoing merger...
Obvious signs of interaction here, so I agree with ElisabethB & others.
It does look disturbed. I wonder what nearby disturbed it.
Nope: it's a satellite trail, a relatively common artifact: http://talk.galaxyzoo.org/help/discussions/DGZ1006byh for details!
This is in a part of the sky where there are almost no objects in our galaxy, so it's not a nearby supernova remnant; it's a distant galaxy.
This looks rather disturbed (including the #dustlane) so probably not an overlap. More likely it's a late-stage galaxy merger product.
Ooh, interesting -- lots of star formation, but only on one side!
Looks like this might be a dwarf galaxy, or at the very least an irregular. Thanks for classifying!
Definitely, yes -- perhaps even two galaxies that appear to #overlap on the sky.
Nice, and a #bar too. (Feel free to use the hashtag character, e.g., #ring, if you want -- your choice!)
(fistbump w/ ElisabethB)
The central object is a galaxy, but the object at right looks like a foreground star to me.
This seems very faint to me to be a QSO at z=0.8 in this data...
I would call this #edge-on, so it's hard to see spiral structure (even if it's there) just because of the likely geometry of the system.
If the redshifts are correct (a big if, for the photozs), the central+right may be interacting and the leftmost is behind them both.
Only 1 of the 3 has a spectroscopic redshift; of the other 2 the photoz is consistent with an overlap for one & a merger for the other...
One of these pairs may be an overlap but there's still enough disturbance that I think the central object is probably undergoing a merger.
A very bright star. More examples of artifacts like these at http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Some pretty intense star formation too, but only on one side.
Don't worry, we ask multiple people to classify each, so even your best guess is very useful!
Yep, #satellitetrail all the way -- for more information on artifacts, check out http://talk.galaxyzoo.org/help/discussions/DGZ1006byh
Yes, it's definitely possible to have multiple knots of star formation along spiral arms or in a ring.
Two points: (1) tagging the same object twice with the same tag has no effect, and (2) one tag generally won't cancel another tag out.
Can anybody else see the X-shaped bulge?
Several different parts of this galaxy are shown in AGZ0002jvt, AGZ0002jvv etc.
Also see AGZ0002jvt (for the other half) - there's probably a full image somewhere too...
Sorry, but this is a Hubble Space Telescope image so definitely not a planetary nebula. It's two stars or maybe at least one is an AGN.
Nice! Also, there's what looks like a rim of intense star formation along the dust lane.
This is very much a galaxy, imaged with the Hubble Space Telescope, but it's very far away so it appears small and faint.
In that case, feel free to tag it with #ring! 😃
Could just be a high concentration of stars.
Yep, #artifact all the way.
Agreed, the greenish object is a star. The central object is a galaxy, though.
Such a shame the bright star's diffraction spike goes right through the galaxy -- but just do your best, and thanks!
The object along the edge of the galaxy is almost certainly a foreground star.
I see a mix of foreground stars and galaxies, but the central object is definitely a galaxy. What do you think -- a ring, or spiral arms?
If you can see multiple things that look like bulges it might help to call that #clumpy -- thanks!
Thankfully you can still classify the central galaxy though!
Yes, most likely an artifact:
Hi Eleanor, don't worry -- there's no wrong answer and we ask many people to classify each galaxy so just give your best guess. And, thanks!
Agreed - and a lot of red ones, too. Definitely all #stars though.
Sometimes people tag these things as #FHB for "faint hubble blob" -- basically, as you said, it's too faint to see any details!
Looks to me like the telescope was moving during the green-filter image. http://talk.galaxyzoo.org/help/discussions/DGZ1006byh #artifact
Yes, it's an artifact -- for more info see http://talk.galaxyzoo.org/help/discussions/DGZ1006byh -- thanks!
I think the two round objects are both foreground stars.
I'd call this a merger too.
Mergers don't necessarily have strong X-ray emission, but some do if, for example, the merger triggers an AGN.
Lovely cluster image!
It does look a little truncated on the left side compared to the right. Maybe a faint dust lane but my eyes could be deceiving me on that.
Chris, I see what you mean, but I think it's more likely to be the same galaxy than two galaxies perfectly overlapping.
That is a #satellitetrail. Sometimes they're blue or red instead. Thanks for classifying!
Yes, probably a very distant galaxy, more than halfway to the edge of the known universe. That companion galaxy may be actually near it.
That is indeed a star! Something must be a little weird with the image if the SDSS analysis pipeline thought it might be a galaxy.
PS - I'd say there are two galaxies! 😃
Some galaxies have several names & others just have ID numbers; you can call this anything you like but there's no really official registry.
Always classify the central object. It can be hard to tell whether a nearby galaxy is an overlap, a merger or just a nearby coincidence!
You are right that this is not a star or galaxy. It is a satellite trail. Thank you!
Absolutely gorgeous - this is UGC 1775, aka Arp 10.
Based on NED, it also looks like a supernova went off in this galaxy in 2000.
http://labs.adsabs.harvard.edu/ui/abs/2007AJ....134.1863M (Martinez-Valpuesta, Knapen & Buta 2007) is a good place to start.
Very interesting object. The tip of the companion object almost looks voorwerpesque to me.
Lots of very distant galaxies in this #Hubble image...
These are most likely all stars in our own galaxy.
It's possible the blue image is just mis-registered a little bit, but it's hard to tell because I can't see enough of the nearby galaxies.
Looks like this might be at least close to #bulgeless as well.
Hi Chris, the HST images are actually less blurred than the SDSS images; they're just very zoomed-in. In SDSS these would be teensy smudges.
It doesn't have to be... I don't know of a spectrum for it yet. The redshift is a photz so it's a bit uncertain, but looks about right.
A few nice examples of bright stars as seen by the Hubble Space Telescope.
That is an image artifact -- I would not be surprised if that were a border between CCD chips.
These do look like they're interacting to me.
Yes, I agree. If you go into Examine and look at the FITS file, you can turn up the brightness and see the wings of the PSF pretty clearly.
I'd say it's extremely faint and just do my best. 😃
The blue dot is almost certainly an artifact, and there does seem to be a tidal feature but I'm not sure it's white.
I wouldn't be surprised if there was also an obscured #AGN here, even though this object doesn't look familiar to me.
Possibly a #voorwerpje as well?
Without doing the cross-matching I can't be sure, but I'm guessing it's an AGN and those are diffraction spikes.
Agreed, this looks like a #merger to me with a foreground star right on top of it.
Also, look at that nucleus!
Lovely disk with what looks to me like a significant bulge and a prominent #dustlane. Nice!
If it's a star, it's from our own galaxy, so it's in the foreground -- the galaxy is well behind the star!
Definitely stars, but with #poorimagequality.
Looks more like a #dustlane to me.
Definitely an artifact of #poorimagequality -- all the stars near this one look similarly weird. 😃
Looks to me like a ~1:1 (equal-sized) merger in the COSMOS field. Cool!
Nice disturbed #dustlane.
Sometimes very bright stars have artifacts like these. But I think the central object is actually the tiny galaxy next to it. 😃
Whoops! Something went weird when these images were taken; this is most likely a star with #poorimagequality.
Yes, this is what a star looks like when observed by Hubble. The brighter ones look even more strange!
Bit hard to tell given that the image exposure could have been turned up a little... just give it your best guess, and thanks!
Beautiful spiral with detailed #dustlanes too. This is new for DR8 so supernovae from 2006 would be pretty faded by this image date.
It does look a little peculiar.
Also, I see an #asteroid too.
Looks like the telescope started moving during the exposure -- or it didn't track the sky correctly!
Yes, the edges seem very sharp, which to me makes it seem like an artifact.
Agreed, the data quality isn't great, but the central object may still be a galaxy.
The photometric redshift information is inconclusive -- could be either. What do you think based on just the images? Signs of disturbance?
Definitely due to poor image quality. Also definitely saving this one as it's an artifact I find particularly amusing. 😃
Please do flag it if you feel it's a merger! Your best guess is very valuable. Thanks for classifying! 😃
Wow. That's a particularly noisy example of a faint Hubble blob!
Personally I would consider that a different nearby galaxy for classification purposes, but it may factor in to the merger question.
I'm not sure we'd call this a merger if it hasn't actually happened yet.
Very interesting and I agree, gorgeous #dustlane!
If you feel that two galaxies are just overlapping and not merging, please feel free to use the #overlap tag. Thanks for classifying!
What makes you say quasar? I suspect the intense blue spots are star-forming knots.
It looks like it could be a merger product but at this stage it's hard to tell if the originals were spiral or not...
What makes you think so? This is a very faint image because the galaxy is so distant.
The star is bright enough that we might see some artifacts in the color images. But, in fact, the star doesn't look like the central object.
I suspect that's just noise.
Yes indeed! That occasionally happens -- an image gets zoomed wrong. Oops!
Yes, that's a satellite trail, and it looks like it happened just on the edge of one exposure (the galaxy is on the adjacent one).
Just a bright(ish) star observed with HST...
This image is very zoomed-out so it's a bit difficult to classify the tiny central object. Just do your best and thanks for your clicks!
Possibly good for the #alphabet as an ! as well.
The smaller of the two is at http://talk.galaxyzoo.org/objects/AGZ0002896 .
It might look that way, but everything is affected by gravity...
Pode parecer que sim, mas tudo é afetado pela gravidade...
If that's a galaxy underneath the point source, then definitely!
Those look like noise. In the HST images blue is a different instrument (ACS) than red/green (WFC3) so the noise looks a bit different too.
It might be possible to check the fiber colors and see whether they're consistent with a quasar. There's no spectrum, unfortunately.
If this is not an unobscured #AGN, I'll eat my hat.
(Skyserver is acting up at the moment, or I'd check.)
Gorgeous #3arm #spiral! Interesting extended disk too.
Quite the spot of bluer light in the middle too. I wonder if this is an #AGN.
Note: we see the result of the gas accretion onto the black hole, but we can't actually resolve the accretion disk in these images.
Another view here: http://www.galaxyzooforum.org/index.php?topic=10047.msg304760#msg304760
Could definitely be a group of galaxies, though until the redshifts are known it's hard to tell whether they're actually near each other!
This is a very, very distant galaxy that's extremely faint even in the deep Hubble images. It's hard to classify, but just do your best! 😃
I think the object to the right is a foreground star (which would indicate the PSF is a little weird in this field).
Classic example of an elliptical galaxy. Thanks for classifying!
Yes, this is from a bad field so it's very possible it's a weird-looking star. Keep clicking and I'm sure you'll get some real galaxies!
Yes, just off to the left. The blue diagonal stripe is a chip artifact. Also, I see a #dustlane in the galaxy.
A faint star in Hubble wouldn't be quite this extended, so yes, I'd say galaxy. Very faint!
The lower source is what a point-like source looks like in Hubble. It could be a star, or perhaps a quasar.
That would be interesting! Tidal debris & other faint signs of merging are harder to see in distant galaxies, so it could still be a merger.
It was also pointed out that this seems to be an #overlap -- cool object!
It typically either means the stars are old (bluer galaxies can have old stars but have new stars too) and/or that it's very, very far away.
Slightly different view here: AGZ00055on
Slightly different view here: AGZ00055oo
The darker spot in the center is a minor artifact of the way the images are created, not evidence of a black hole. Thanks for classifying!
Just give it your best guess -- I can see spiral arms, but others may see it differently and that's ok!
Really nice Hubble #merger!
Gorgeous #faceon #spiral.
Feel free to tag systems you feel are merging as a #merger 😃 This is lovely!
What in particular is puzzling you? It looks like a beautiful example of a spiral to me.
I wouldn't be surprised if it turned out there was an #AGN here.
I'd call the feature at about 8:00 a #dustlane.
Yes. My guess is most people will find this galaxy #classifiable despite the #artifact.
Definitely always classify the object in the center & only consider others if you think they're interacting (there are questions for that).
Yes, I'd say so.
Without knowing more about the observations around it, it's hard to tell, but it looks real to me.
Looks more to me like the telescope moved (or failed to track) during observations.
It is, although the central object does appear to be a galaxy. Difficult to classify because of the diffraction spike, though.
PS - as kids sometimes read these, please try not to swear. 😃
Agreed, it's an #artifact.
Agreed, it does!
This is probably a star, but it's hard to tell because it's in an area of the survey with very #poorimagequality -- I'd call it an artifact.
You sometimes get these donut shapes when the telescope is badly out of focus...
Looks like an edge-on galaxy to me!
Definitely an artifact. I know images in this area are scheduled to be removed, but apparently they haven't been yet. Sorry...
Did the site ask you to classify this image today? I believe this run was supposed to be removed from the database. Will look into it!
Could be near the edge of the chip in the blue band...
Those two bright points above the central galaxy look like foreground stars to me.
This is on the edge of the image, where the different filters (colors) end at slightly different places. I'd just call it an artifact.
I have to admit: the way this one appears to intersect with the background galaxy is pretty cool looking.
Looks like a data artifact to me.
No evidence of a supernova here.
Everything here looks like a galaxy to me, though the one on the left has a central concentration. Always classify the central object! 😃
It's a #satellitetrail in an area with #poorimagequality, so the star (?) behind the trail looks odd as well.
The central galaxy is a lovely #edgeon disk that looks #bulgeless to me.
Maybe... as this is a Hubble image it could also be a big galaxy so far away that faint tidal debris doesn't show up at all!
This looks like a galaxy to me.
It's great that your class is using Galaxy Zoo. Hope you enjoy it!
This is a gorgeous #overlap! Thanks for linking it to the other image, zutopian.
This definitely looks cool, but I suspect it's just a foreground star...
Indeed -- we're working on removing this region from the database and it should be done soon.
Good point. It is a kind of ❤️ in the galactic #alphabet.
Looks like this was just at the edge of the chip in the red and green! I can still see a faint blob in the middle, but it's a challenge.
This is an imaging artifact, I'm afraid -- something went off with the observations.
#satellitetrail -- think you can still classify the galaxy despite it? 😃
Definitely #dustlane. Gorgeous example.
That's an artifact -- just part of the bright star. Not a planet, sorry.
That's most likely a minor data artifact, but it's good to note them. Keep classifying and you'll get more familiar with the data variation!
Where? The central object does not look like a pea galaxy to me.
Yes, this is an artifact of poor image quality.
Agreed, but it's a very nice #edgeon #disk with a #dustlane and a slight #warp.
Definitely a galaxy, not sure whether there is an AGN at the center. If so, however, it isn't likely to be as strong as a quasar. Good find!
Looking at the photometric redshifts of this and the objects around it makes me think they're all part of a group.
Yes, nice #dustlane that's a bit warped. Very interesting!
The target looks like an extended galaxy to me, but the light is quite centrally concentrated.
It looks like a galaxy to me, but it's right on the edge of both the red and green Hubble chips, where you sometimes get these artifacts.
It looks to me like both the objects are stars, but the central one is faint enough to not show diffraction spikes.
Looks to me like a funny-looking star.
The photometric redshifts are barely consistent with one another within the errors, but the top right galaxy doesn't look disturbed to me.
Really nice #dustlane.
I'd say foreground star.
Looks like a foreground star from our own galaxy.
This is a satellite trail (a type of artifact).
It's a satellite trail -- definitely an artifact. They're often green but can be blue or red as well.
Those are both stars, so probably not necessary to flag them here. Do always classify the central object, though.
Too bad, as it looks like a lovely spiral with a dust lane!
Still works (possibly) for the #alphabet!
Indeed, could be an #overlap.
Looks like an artifact from a nearby bright star.
All the Hubble galaxies are very distant so many of them are faint, but you can still try and classify galaxies like these! 😃
I see a Hubble galaxy with clear features, perhaps spiral and/or clumpy? It's your call -- just do your best!
Actually, this is what a bright star looks like in a Hubble image from CANDELS.
It does look like a cluster, though a galaxy cluster, not a globular cluster, which is different. Nice image!
It's a satellite trail. Luckily you can still see enough of the galaxy to classify it...
It is pretty, but it's an artifact/poor image quality. Keep clicking -- there are plenty of good images out there!
Nice #alphabet example! 😃
It's more likely to be a foreground star...
...not everyone will agree with me and that's fine! 😃
Just do your best -- there's no right or wrong answer here. I'd probably assume the spot exactly in the middle was a foreground star, but...
Many of the fainter Hubble galaxies look like this; just try to do your best!
I don't think that any of these are stars -- everything here is a galaxy. Whether it's a merger or an overlap is open to debate, I suspect.
Quite possibly a merger. I wish the image quality was better!
This is, unfortunately, an image with poor quality, not an actual violet object on a green sky. My guess is this is actually a star.
The shard of light that looks like it's coming from the galaxy is actually an artifact from the nearby bright star. Not a quasar.
Zoomed out: http://skyservice.pha.jhu.edu/DR8/ImgCutout/getjpeg.aspx?ra=67.84506748&dec=18.13084192&scale=3.169016&width=512&height=512
I thought wwg1775 might be a spammer but I'm not sure.
I'm not sure this looks quite like we think our MW does; see http://blog.galaxyzoo.org/2012/02/03/another-galactic-twin/ for more info.
The white object toward the bottom center is a #foregroundstar.
The central galaxy doesn't look #disturbed to me, so this could be an #overlap instead of a merger. Also, bright red foreground star...
The speckles are image noise -- and this is indeed a very faint Hubble blob. #fhb
Indeed. I see a #dustlane as well.
I notice you've tagged a few galaxies with that. That won't make them get thrown out, just FYI... but it's not an accurate label here.
Are you sure it's a merger? Looks to me like a galaxy and a foreground star.
The compact things around the edge of the image look like stars to me.
Nice #edgeon #dustlane and #foregroundstars.
This is an artifact/#poorqualityimage.
Although I think it's still possible to classify the central galaxy, something clearly went wrong with the blue image...
Congratulations! What a nice example for a milestone.
That's the signature of an #asteroid. Well spotted!
Also a very nice #bar feature.
Also, useful for a future #alphabet if someone wants to write "I ❤️ Galaxies" in galaxies.
It's a bit hard to tell given the stretch but my guess is it's either a star or a fairly bright AGN.
Indeed, I'd call this an ongoing #merger as well.
Bit wobbly, but it's a #satellitetrail.
Yes, this is what a star (and sometimes a quasar or AGN) looks like in a Hubble image.
Indeed -- definitely a case of #badzoom, unfortunately.
Zoomed out: http://skyservice.pha.jhu.edu/DR8/ImgCutout/getjpeg.aspx?ra=355.44723446&dec=-3.66734204&scale=1.584508&width=512&height=512
Feel free to tag it! #merger 😃
Without checking the literature, my guess is this is a real #group.
Could be -- unfortunately it's just off the chip in the red and green images, so it only shows up in the blue.
Also looks like a #starcluster in #M33, like AGZ0005j7g (a different cluster).
Go to Examine, then SkyServer, then click the image and zoom way out -- this appears to be a star cluster in M33. Also see AGZ0005j7e
Looking at SkyServer, I'm surprised to find no identification of this as an AGN in the literature.
Note you can see the same group in a different stretch in AGZ00010ng -- with the faintest of the 3 in the middle there.
Note: the red object is in the middle in AGZ00010kx (same group).
It does look a bit weird, but always classify the galaxy in the middle, which in this case is neither red nor green (but fainter than both).
Also looks to me like this #AGN host galaxy has a #bar.
The image looks okay; looks like one is just really bright in the J band (which gives us the green color here) and one in the H band (red).
That is often the case, yes. In this image I wouldn't be surprised if they both turned out to be stars made fuzzy by #poorimagequality.
(I now can't remember if the tag is as above or if it's #poorimagequality.)
Yes, and it's also an #AGN.
This is a Hubble image, so it's about as high-res as it's going to get for a while.
It is beautiful. This is NGC 7811, also known as Markarian 543, and the galaxy hosts an #AGN.
The #edgeon #disk is also #asymmetric.
Also, anyone else see that tiny little smudge of blue at around 5:00 relative to the center? (Zoom in.)
Could also be an #AGN if it's a small diffraction spike and the other one is along the galaxy axis. Hard to tell given the stretch.
I completely understand -- it's so tempting when the one off to the side is complex and unique and the middle one is smooth and fuzzy. 😃
Thank you for classifying and tagging!
I'm thinking it might be better to tag these with #foregroundstar instead of overlap, to keep them separate from galaxy-galaxy overlaps.
Interesting that there's such prominent #starformation in one arm but less in the other (#asymmetric).
#3arm spiral no less -- cool!
I wonder why this image is zoomed out so far? #imageissue #badzoom
Also, given the nuclear color I wouldn't be surprised if this turned out to have an #AGN in it. If so, hard to tell if it's also #bulgeless.
There's a lot going on here -- everything you mentioned plus possibly a #dustlane and an #asteroid too!
Oh, it already has - AGZ0003gqc - and you posted it! 😃 Best to ignore the edge galaxies unless they're interacting with the middle one.
Actually, this is the same galaxy that showed up on the edge of the image you posted about before -- AGZ0003gqd -- just zoomed-out!
I know that's tempting but it's important to classify the central galaxy. The ones around the edges may show up in the center later!
Looks to me like a case of #poorimagequality -- those are probably stars.
Lovely #needle galaxy that may also be #bulgeless.
Indeed. Also looks #bulgeless to me.
Lovely example. I would definitely say bar; there's no perfect answer, so just do your best! (I wonder about an AGN too. But then, I would.)
Alas, no SkyServer for this as it's a CANDELS image. Phil, I have the GOODS-S WFC3 fits images if you want to take a look.
Unfortunately something went wrong with the image on this one...
The bit in the middle looks like a point source to me.
This is a #poorqualityimage.
The spiral arms are fun to try and follow in this one!
Looks like an interesting galaxy and a couple of stars as well.
Looking at the zoomed-out image, the blue cap is on everything, so I'd say it's just an artifact.
Feel free to classify this as an #artifact of a #poorqualityimage.
Unfortunately it's just a #poorqualityimage.
Actually I think there is a very faint galaxy in the center , but it's very hard to see with that huge diffraction spike right there!
😃 They are foreground stars.
#dustlane as well, looks like.
Not a BH or dark matter. I agree with Karen: just a very disturbed galaxy, maybe even one that just looks like a disk in projection.
Yes, those look like sites of active star formation to me.
Lovely interaction between two galaxies!
Possibly -- it's more likely to be a foreground star, though.
Definitely a faint hubble blob, which people have been tagging as #fhb or #toofainttoclassify.
There might be some funny image quality stuff going on here. But, as an aside, red is a cooler color than blue for a star.
Looks like a nice example of a #spiral to me -- and I'm sure your count was fine!
This looks like the image is centered on an #artifact from the very bright star that dominates the image.
Lovely -- seen also in AGZ0005ryk (discussed at http://talk.galaxyzoo.org/objects/AGZ0005ryk/discussions/DGZ100674i ).
This is one of the "faint hubble blobs" or #fhb for short -- they're a bit challenging, so just do your best!
The other side of the pair is AGZ00013uv (testing to see if this links them).
(testing to see if this links them) The other side of the pair is AGZ00013vp.
I know the feeling. Sometimes it's like up is down, day is night, and I...
oh, you were talking about the galaxy? Just do your best! 😉
I agree. The blue Hubble images are taken with a different instrument (vs red/gr) and stars can look slightly weird (not usually this much).
Yes, most likely a star.
Indeed, particularly that bit at the top edge. And it looks like there's a reddish bit too.
SkyServer classifies the brighter red object as a star and the fainter red object as a galaxy. Nice #edgeon #disk for the central galaxy.
Interesting find. I wonder if this is an #AGN.
Also possibly an #X shape in the central bulge... but hard to tell.
Thanks! Feel free to use the hashtag #ring.
Indeed. Tagging with #edgeon and #dustlane for later.
It's a #satellitetrail -- a form of #artifact.
Actually, I think the image is fine -- it's just very faint so there's a lot of noise.
You could definitely call this a #fainthubbleblob or #FHB.
Really nice. This galaxy is on the edge of the Leo #cluster (Abell 1367). If you go to Examine, then SkyServer, you can zoom out and see it.
Always classify the central galaxy. I think JeanTate is right that this is more zoomed-out than it should be.
It's a #satellitetrail.
Neither -- it's a very small part of the Orion #Nebula.
If you go to Examine, then SkyServer, then Navigate, and zoom way out: this is a gas cloud on the edge of the Orion Nebula. Cool!
A star where the green filter had #poorimagequality compared to the other filters.
The coordinates are given in the RA, DEC listed below the image. For more information, Click on GZ Examine and then SkyServer if available.
This is a flaw in this part of the SDSS data. Some people have been tagging this with #poorimagequality.
Impressive! Feel free to tag systems like this with the #merger tag.
Looks to me like a field of #stars taken when the seeing was not very good.
My guess is that the galaxy is at such a high redshift that what would look blue if we could see it up close is shifted into the green band.
...probably too rare for us to make everyone answer the Odd question for ~100k galaxies. But you can tag anything odd on Talk.
In the parallel discussion hcferguson (CANDELS team member) points out we only expect about 15 of these in all the Hubble pics. That's rare!
Looks more to me like a normal galaxy in a fairly dense field of foreground stars.
I'd lean toward #merger too.
It's a star with diffraction spikes: http://en.wikipedia.org/wiki/Diffraction_spike
More likely a foreground #star.
Looks like an #artifact -- possibly the telescope was out of focus when the red image was taken.
Gorgeous #dustlane, definitely. (The hashtag stops after the space so I've added one without. Thanks for tagging it!)
That is definitely an unresolved source (most likely a #star) in Hubble, though the blue looks mis-aligned.
Looks to me like a foreground star in front of the galaxy.
...go to SkyServer's Navigate feature and look at the galaxies around it. If there are a lot of peas/olives, it's probably an artifact.
I've seen several of these that look more like an olive than a pea. If you want to check whether they're really this green or not you can...
Alas I don't think these are real green fuzzies: http://skyserver.sdss3.org/dr8/en/tools/chart/navi.asp?ra=350.85791303&dec=73.51433857
We don't currently have any radio images in Galaxy Zoo. This looks like an image where something went awry with the blue filter.
Feel free to just mark this type of thing as an #artifact and click on to the next image!
Non, c'est un #artifact.
Or "!" -- either way definite #alphabet candidate.
Indeed, and I also think I see a #dustlane.
That looks like an #asteroid -- it moves between exposures so it shows up at different places in each filter & like a rainbow line in color!
It does look smooth but it is definitely extended and not a star. The central galaxy (the one you're meant to classify) is also elongated.
Yes, I'd say based on it also showing up in the galaxy at bottom left that it's an #artifact of some kind.
Lovely #merger - quite a lot going on here!
...from there you can see this green is repeated in other nearby objects. It's likely an #artifact -- something weird with the green filter.
Click "Galaxy Zoo examine" and then "View in SkyServer", then Navigate on the left, then Get Image (yikes, that's a lot of clicks!)... cont.
Indeed, a potential addition to the galactic #alphabet!
It is pretty! If you click on "Galaxy Zoo examine" and then "View on SkyServer" you can use the tools there (Navigate) to zoom in and out.
The blue stuff looks to me like an #artifact: this is at the edge of the chip in that Hubble band. The galaxies are interesting though!
Oops! I wonder why that happened... I'll see if I can get to the bottom of it.
That is a very bright #star.
I agree, it's very faint -- see http://talk.galaxyzoo.org/objects/AGZ00004kg/discussions/DGZ1002ov2 for more details!
Hard to tell if it's really clumpy or if the blue is just part of the #artifact toward the upper right side of the image (edge of the chip).
Half the galaxy (the bottom part) looks fine and the other half of the image is corrupted by a data #artifact.
#artifact -- looks like the corner of a Hubble image with some bad pixels.
Or, as @ttfnrob just noted, #christmasspaceinvaderswentwrong.
Just #testing something... though this looks a bit like it has spiral-looking #tidaltails, it's hard to tell.
I agree; I can see the #tail too. And there's a bit of a blue smudge as well!
This is a #star in data from Hubble, which is not a ground-based telescope, but those spikes are normal for all telescopes/bright stars.
Most likely a foreground star.
Feel free to use the hashtag #AGN so it's searchable and collectible later!
This #artifact is called a #satellitetrail because the satellite passed overhead (reflecting light at the camera) while SDSS was observing.
Definitely #merger and #dustlane.
I am not sure they are all stars. There seems to be some extended emission. But I do agree that there's probably at least 1 foreground star.
Always try to classify the object in the center.
I suspect merger because each half appears to have a separate bulge.
Classify the central galaxy. And if you think this is merging with its neighbor(s) you can point that out in the "Anything Odd" question.
It will likely be in the database as well; when it's the target to be classified it will be in the center of that object's image.
To clarify: Vladutz and I are talking about two different things (the bar is perpendicular to the star's diffraction spike).
If you click through to SkyServer from the examine page and zoom out on the image, it turns out to be an artifact from a nearby star.
If I were classifying this I would try to ignore the blue spike (and the star) and just classify the underlying galaxy. Good luck!
Looks to me like a faint, fuzzy galaxy that happens to have a diffraction spike from the bright star passing right through it... (c)
Yes, we are really pushing the boundaries with observing distant, faint objects, so there are a lot of faint galaxies like this.
Yes, that's exactly what it is. #artifact
Oops! Looks to me like a #star field where the telescope was well out of focus (so a kind of #artifact).
That is a gorgeous #bulgeless #edgeon #disk (or #disc if you prefer)!
It's a #star, but the shape of a star on the image varies slightly by color, in blue in particular here.
Looks like a #star to me.
Looks to me like the telescope moved (or didn't track properly) during the r-band exposure. Definitely an #artifact.
The bright object next to the (very faint) central object is a #star.
Definitely an #artifact -- I believe that is a satellite trail. They aren't always green but they're one bright color.
I saw at least one dark cloud while looking for examples to put in the help section! Beautiful.
It's hard to tell just by looking at the image, but it could be a small satellite galaxy or a more distant background galaxy.
Definitely a #star as seen by Hubble, but not so bright that the diffraction spikes are huge.
Yes, it's an #artifact.
Faint but lovely!