SharpCap Forums

Hey All , here is M65/66 . I took this January 5th from my work place parking lot in Boerne , Texas , with a QHY183m cmos and an ES127 FCD100 on an unguided CGX mount : 600 frames , each of 6 seconds . Thanks for looking .

https://drive.google.com/file/d/1Hw9h9Q ... p=drivesdk

Nice!

There is a lot of nebulosity that we are not seeing because you have the black level set too high -- that is why outer space is black. Can you reprocess it so that we can see space as a shade of gray?

Thanks,
Brian

PS: What's worse: the sky glow from San Antonio or Austin?

Agree with Brian. There's a lot of detail you are missing from too high black point. The cores have lots of details and your stars are round to the edges. Well done!

Nice

Okay Brian , I tried to keep more of the galaxy's edge in tact ; but now you can see the mistakes I was hiding .

https://drive.google.com/file/d/1Z-G82i ... p=drivesdk

Looks good.

Is there something that can be done to remove the artifact at the bottom of the photo other than clipping the black level? That's a tough trade to have to make, and I can see why you did what you did in the first photo.

By the way, I believe that outer space is indeed black. It is not gray. It is only the effect of our atmosphere that keeps outer space from being black from our perspective.

Don S.

Some interesting articles on the colour of the night sky and space here:

http://www.clarkvision.com/articles/col ... night.sky/

http://www.clarkvision.com/articles/col ... llar.dust/

There is more information on Roger Clark's web site.

Dave