Quote:
Originally Posted by Astro_Bot
I didn't know that. I thought more pixels would produce a better image?  Or is it that the pixel density that works on DSOs isn't high enough to get good resolution on planets? Or am I way off?
Why is that, if you don't mind me asking? |
DSOs are dim and need long exposures. They are often quite large as well. Planets are bright and quite small at the focal plane, even at long focal lengths. For planetary you want a small sensor that you can read quickly to get lots of short exposures. Then you pick out the best ones from the short, transitory periods of good seeing and process them to produce your image. It's a very different technique to imaging DSOs.
Cheers,
Rick.