What is the black stripe?

• by Foundren_Shi

  It looks like there's **

  a dark black stripe

  ** running across the picture from the bottom to the uper end of the photo. What 's that ?
  Besides,I think some dust clouds or stars have coverd the galaxy, is it?

  Posted July 21, 2013 12:45 PM

• by JeanTate

  There may be some image quality problems - the bluish-green outer parts of the galaxy, green blobs - but I myself can't see a black stripe. When the MWV is up, we can check. The red spot in the upper part of the galaxy is a star, according to the SDSS photometric pipeline.

  Posted July 21, 2013 2:29 PM

• by Capella05

  The black stripe runs across the entire image from upper right to lower centre - I would say it results from image processing.

  Posted July 21, 2013 8:30 PM

• by JeanTate

  I see it now. It is responsible for the strangely-colored blobs, and the green outskirts (on the right hand side) of this galaxy. It's certainly an artifact, either a failure of some kind in the camera/detector or the processing pipeline (it's not near a Field edge, so that's not the cause).

  And there's another black stripe close by too; here's an inverted image (from the SDSS Navigate tool), with the galaxy off to one side:

  

  Posted July 21, 2013 11:24 PM