Quote:
Originally Posted by multiweb
That's a Schmidt ghost, the reflection of a bright star in focus off the CCD surface back to the glass of the corrector plate and then back to the CCD.
Here's a bit of reading about internal reflections.
http://iopscience.iop.org/article/10.1086/648457.
In your case a large amount of dithering and stacking will reject these. |
Thanks Marc. I hoped someone would reply with that knowledge. Enjoying the World Cup ?