Asteroid Zoo Talk

What could it be?

  • Campeche15 by Campeche15

    What could it be the black spot?


  • scibuff by scibuff

    Just an artifact in the CCD Camera / Telescope optics. the moves because the telescope deliberate dithers (moves a bit) from frame to frame in such a way that the artifact must not exhibit a linear motion like asteroids. That makes them very easy to tell from the real targets.