Galaxy Zoo Talk

Very regular shapes

  • eeksteyn by eeksteyn

    Hello, i'm new on Galaxy zoo. Mij third picture shows strange groupes of green dots and a green broken circel. What could it be?? The groupes of dots are so regular.
    Erik van Ekeren
    The Netherlands


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

    Welcome to Galaxy Zoo!

    Those are #artifacts. I don't know how the green-dots-arranged-in-a-square arise, but the green broken circle is, I think, a 'ghost' ... the internal reflection (within the UKIDSS camera) of some bright source somewhere else in the field.