This sure looks like a comet. How can I check to see if it is known or not? / 67P/Churyumov-Gerasimenko
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saganesque
I was classifying this evening and simply started browsing some legacy SDSS data here. If you follow this link and then click 'SDSS Data' on the panel, I think you'll see what I'm talking about when I say I see a comet. How does one check sources to see if that's what it is, or if it is a known #comet ? If it is unknown, where do you report it?
http://legacysurvey.org/viewer?ra=175.5011&dec=10.9152&zoom=12&layer=decals-dr2
Again, you have to click the "sdss images" radio button.
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Budgieye
moderator
Yep! It is a comet in SDSS. Quite a spread out tail, it must be doing a quick turn around the Sun.
seen in Galaxy Zoo forum in 2007 http://www.galaxyzooforum.org/index.php?topic=437.msg48471#msg48471
http://skyservice.pha.jhu.edu/DR8/ImgCutout/getjpegcodec.aspx?R=3525&C=6&F=137&Z=0
ID by c_cld Re: Wednesday, 29th February, 2012: SDSS comets http://www.galaxyzooforum.org/index.php?topic=279947.msg588899#msg588899
S. et all / GZforum 67P/Churyumov-Gerasimenko 14.28 587734894361772192 1237660615586676922
for more info on comets in our imagees see.
If you want to identify moving objects, here is the website.
NASA: Small Body Identification http://ssd.jpl.nasa.gov/sbfind.cgi This tool provides a list of small-bodies only (asteroids and/or comets) which are likely contained in the specified field on the specified date/time.
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saganesque
in response to saganesque's comment.
As an aside, I've found a split image in a different data source.
http://skyserver.sdss.org/dr8/en/tools/chart/chart.asp?ra=175.50327379&dec=10.92278296
It seems to capture part of the tail, but not the rest. I'm not a frequent GalaxyZoo user, so I'm very novice at looking things up. Forgive my ignorance in how to sort it out. Any assistance would be greatly appreciated.
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saganesque
in response to Budgieye's comment.
That's a fantastic resource! Thank you!
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Budgieye
moderator
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Posted
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Budgieye
moderator
The image must have been taken during the 2002 approach.
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587732772663132926
Field mjd_g 5.2345276E4 modified Julian date
Modified Julian date converter http://pdc.ro.nu/mjd.cgi
March 12, 2002
Rosetta rendezvoused with Churyumov–Gerasimenko on 6 August
2014[19][20] and entered orbit on 10 September 2014.[21] Rosetta's
lander, Philae, touched down on its surface on 12 November 2014,
becoming the first spacecraft to land on a comet nucleus.https://en.wikipedia.org/wiki/67P/Churyumov–Gerasimenko
http://sci.esa.int/rosetta/14615-comet-67p/
During the 2002/2003 apparition, the tail was up to 10 arc minutes
long as seen from Earth, with a bright central condensation in a faint
extended coma. Seven months after perihelion the tail continued to be
very well developed, although it subsequently faded rapidly.
The comet has now been observed from Earth on seven approaches to the
Sun - 1969 (discovery), 1976, 1982, 1989, 1996, 2002 and 2009. Like
all comets, it has a fairly small, solid nucleus which is thought to
resemble a dirty snowball.Posted