Galaxy Zoo Talk

Artifact or something else?

  • schatten_drache by schatten_drache

    I saw this green beam and i wonder if this is a common artifact or something else?


  • fatha731 by fatha731

    I would say that this is the most common artifact in SDSS images. This is actually a satellite trail which is caused by the satellite passing in front of the lens and the sun light reflecting on it. They can also be blue or red.


  • planetaryscience by planetaryscience

    this is also a pretty common artifact: AGZ00021ly