Asteroid Zoo Talk


  • brogers0108 by brogers0108

    is that a planet and moon?


  • wrenoud by wrenoud

    If you notice in slide 4 the large black dot is no occluding, or blocking all the stars. I believe it's an artifact from the telescope.


  • Asteroid58 by Asteroid58

    Probably not, it is translucent with the stars behind it. Just another random artifact I think


  • Dr.Asteroid by Dr.Asteroid scientist, admin

    Howdy - I'm a Planetary Resources representative. Most likely it is a bit of dust on the CCD dewar window. That happens and isn't well corrected by the standard Catalina pipeline. They cause shadows that aren't totally black because they're not in focus - but do make a distinctive spot.