Galaxy Zoo Talk

Blue spot

  • HTeuling by HTeuling

    I see a blue spot on the left hand site of the galaxy. Also there is a spot right below in the picture with the same clarity as the galaxy in the middle. Any ideas?

    Posted

  • JeanTate by JeanTate in response to HTeuling's comment.

    The blue spot is, almost certainly, an artifact.

    Unfortunately, I am not sufficiently familiar with UKIDSS image artifacts to be able to say what kind, or how it was (likely) produced ... 😦

    Posted

  • KWillett by KWillett scientist, admin, translator

    Although it can be seen in all bands, it does seem to change position (which is odd). The images in Examine show it in roughly the same place; strong blue color here means it should map most strongly to the Y-band at 1.035 microns.

    Posted