Purple patch

• by Budgieye moderator

  It seems to be part of the galaxy. Maybe a #voorwerp? The nucleus of the nearby galaxy doesn't look very active.

  It has the purple of a really distant galaxy, though.

  It could be a red-blue binary star.

  not in the footprint of SDSS dr7

  galaxy

  objID 1237678880467517942
  photo z 0.074292
  zErr 0.027566

  purple patch, no photoz

  

  http://skyservice.pha.jhu.edu/DR9/ImgCutout/getjpeg.aspx?ra=322.93987275&dec=-1.90208836&scale=0.2&width=200&height=200&opt=G

  

  http://skyservice.pha.jhu.edu/DR9/ImgCutout/getjpeg.aspx?ra=322.93987275&dec=-1.90208836&scale=0.049515875&width=512&height=512&opt=&query=

  http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?id=1237678880467517947

  ---

  http://legacysurvey.org/viewer/jpeg-cutout/?ra=322.9399&dec=-1.9022&zoom=16&layer=decals-dr3

  DECaLS

  http://legacysurvey.org/viewer?ra=322.9398&dec=-1.9022&zoom=16&layer=decals-dr3

  ![http://legacysurvey.org/viewer/jpeg-cutout/?ra=322.9426&dec=-1.9009&zoom=15&layer=decals-dr3]

  http://legacysurvey.org/viewer/jpeg-cutout/?ra=322.9426&dec=-1.9009&zoom=15&layer=decals-dr3(http://legacysurvey.org/viewer/jpeg-cutout/?ra=322.9426&dec=-1.9009&zoom=15&layer=decals-dr3)

  

  http://legacysurvey.org/viewer/jpeg-cutout/?ra=322.9426&dec=-1.9009&zoom=15&layer=decals-dr3

  PanSTARRS

  http://ps1images.stsci.edu/cgi-bin/ps1cutouts?pos=322.943%2C-1.900&filter=color&filter=g&filter=r&filter=i&filter=z&filter=y&filetypes=stack&auxiliary=data&size=240&output_size=512&verbose=0&autoscale=99.500000&catlist=

  ---

  ---

  nothing in NED

  1237678880467517942

  SDSS J213146.32-015401.4

  http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?id=1237678880467517942 the galaxy

  Aladin Lite

  http://aladin.u-strasbg.fr/AladinLite/?target=21 31 45.56 -01 54 07.51&fov=0.05&survey=P%2FDSS2%2Fred

  Posted September 14, 2017 11:54 AM

• by Ghost_Sheep_SWR

  Very interesting purple color in SDSS. Can't find anything interesting about the galaxy or purple feature.

  But galaxy looks a bit like (weak?) AGN in WISE. And purple spot really doesn't look like star(s) in DECaLS to me, more an extended source like a starforming area or voorwerp. I wouldn't bet on background galaxy, but who knows?

  Posted September 14, 2017 10:54 PM