What is it?

• by Alpha_Aurigae

  Probably going to make a big fool of myself again, but I'd like to point out something strange. It probably is a Sky View artifact.

  Coordinates: 21:30:26.38,+12:28:03.74

  Sky View image only visible in DSS2 Red

  

  Skyserver image:

  

  Posted March 2, 2015 8:12 PM

• by ElisabethB moderator

  I know I'm being lazy, but could you get us a link ?

  Posted March 2, 2015 8:24 PM

• by Alpha_Aurigae

  I am receiving a number of images from Billy (wtaskew). The object is only visible in the red spectrum.

  

  

  

  

  Posted March 2, 2015 8:26 PM

• by Alpha_Aurigae

  Hi Elisabeth, I don't have a link, but I'll send you a pm.

  Posted March 2, 2015 8:28 PM

• by williamaskew

  SDSS J213026.38+122803.7 is objects id

  the first two images DSS2 in native and rainbow.

  second two DSS2 Red in native and rainbow

  Posted March 2, 2015 8:39 PM

• by Alpha_Aurigae

  Is this the glow of a star we can't see or identify yet? That would make this an artifact. I am quickly getting desillusioned here after today...

  Posted March 2, 2015 9:39 PM

• by c_cld

  Optical ghost of nearby Messier 15

  for example: From HST ACS handbook
  2. Large annular ghosts: caused by reflection from the detector window, to the filters, and back to the CCD,and are seen near bright objects.
  3. Small annular feature: created by reflections between the inner and outer window surfaces; These are smaller and fainter, and found much closer to the parent object.

  Posted March 2, 2015 9:55 PM

• by Alpha_Aurigae

  Okay. Thanks C_cld.

  I have also participated in the Andromeda project and I am familiar with ghosts.

  Posted March 3, 2015 1:05 AM