Quote:
Originally Posted by jase
Well Mike, can't help you if you're not up with the CCDStack lingo. What I explained is far from rocket science. 
If you're impacted by seeing using long focal lengths, yes you'd certainly discard those subs. Providing the subs that contain the anomalies you mention had a low FWHM, I'd be keeping them. Why throw out good data because a few plane trails, cosmic ray hits or star "nipples" are present? Not exactly productive imaging. The chance of these anomalies overlapping (especially when dithering) are extremely unlikely, so use tools of the trade to your advantage. |
Fair enough
Unfortunately becasue I use two seperate cameras and piggyback guiding I can't dither automatically, I have to move the scope between each sub manually
..I used to do it but it was a real pain requiring me to have to sit at the scope all the time (no napping possible) so I don't do it anymore
...just have to make sure I get good data everytime, that's all
