Galaxy Zoo Talk

What does this signify?

  • atanauli by atanauli

    1. What do the horizontal and vertical bar signify?
    2. The bars almost seem mirror images of each other -- is this normal?


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

    My pet name for them is 'compass points' 😃

    They are 'diffraction spikes', and are common in SDSS images of bright stars. More about them in this recent OotD (Object of the Day) in the GZ forum: Diffraction Spikes, of the SDSS Kind