Very regular shapes
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
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.