planet

• by brogers0108

  is that a planet and moon?

  Posted June 24, 2014 11:15 PM

• 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.

  Posted June 24, 2014 11:22 PM

• by Asteroid58

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

  Posted June 25, 2014 3:10 AM

• 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.

  Posted June 25, 2014 4:31 AM