Green light?

• by GoldenRule

  What is the green light in this galaxy?

  Posted February 22, 2017 10:32 AM

• by GoldenRule

  Is the green light a voowerp I read about?

  Posted February 23, 2017 1:10 AM

• by zoob1172

  #star 1237658492817113223

  Posted February 23, 2017 2:14 AM

• by Ghost_Sheep_SWR in response to GoldenRule's comment.

  Could be a transient but more likely an artifact (cosmic ray hit). Voorwerpjes usually are dark blue / magenta and oddly shaped.

  More info in the Index:

  3.3 AGN-illuminated clouds, voorwerpje https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3

  and

  3.5 Hanny's Voorwerp https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3

  Posted February 23, 2017 7:56 AM

• by Budgieye moderator

  Green thing is not in PanSTARRS. So it might be a supernova.

  see 4.1 Supernova https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4

  

  http://skyserver.sdss.org/dr12/SkyserverWS/ImgCutout/getjpeg?TaskName=Skyserver.Explore.Image&ra=182.106883610744&dec=10.0179984434857&scale=0.2&width=200&height=200&opt=G

  http://skyserver.sdss.org/dr12/en/tools/explore/Summary.aspx?id=1237658492817113223

  http://ps1images.stsci.edu/cgi-bin/fitscut.cgi?red=/data/ps1/node14/stps14.1/nebulous/b8/e7/5459659392.gpc1%3ALAP.PV3.20140730.restack%3A2014%3A11%3A06%3ARINGS.V3%3Askycell.1546.054%3ARINGS.V3.skycell.1546.054.stk.3829708.unconv.fits&blue=/data/ps1/node19/stps19.1/nebulous/be/06/7092093296.gpc1%3ALAP.PV3.20140730%3A2014%3A09%3A15%3ARINGS.V3%3Askycell.1546.054%3ARINGS.V3.skycell.1546.054.stk.3450819.unconv.fits&green=/data/ps1/node03/stps03.0/nebulous/00/a2/7092034494.gpc1%3ALAP.PV3.20140730%3A2014%3A09%3A12%3ARINGS.V3%3Askycell.1546.054%3ARINGS.V3.skycell.1546.054.stk.3446219.unconv.fits&x=182.106579&y=10.016600&size=240&wcs=1&asinh=True&autoscale=99.750000

  Put in Unreported supernova #SNe https://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ00016qc

  Posted February 23, 2017 2:08 PM

• by GoldenRule

  Thank you very much!

  Posted February 26, 2017 7:57 AM

• by Budgieye moderator

  So how do we find out if it is a undetected supernova.? We can't be certain, because a spectrum needs to be taken at the time of the explosion, By the time it has appeared on data releases, it is too late because the supernova has faded.

  We are guessing that is is a supernova. We check another image to see if the star is not present. If it is small, bright and green or greenish blue, then it was likely a supernova. It is nice to know, and someone might like the information someday, and it is information that computers cannot collect.

  Posted February 26, 2017 9:22 AM