M66

[cuivenion]

As I'm using the AS224 to image I can only go after one of the Leo triplet at a time. This M66 with about 6 hours of 1 minute lights at unity gain. Unfortunately every night on this was a bit breezy so I had to throw out a lot of subs.

Mount: Skywatcher HEQ5

Imaging Camera: ZWO ASI224

Guiding: Altair GPCAM with FinderGuider

Imaged with Sharpcap 3.2 and PHD2. Processed with DeepSkyStacker and Pixinsight

Any comments or criticisms welcome as ever.

 

[Dragon_Astro]

Very nice!

I struggle with the gain with my 224C, what are you using for unity gain?

[cuivenion]

Cheers. Unity gain is 135 at 12 bit with the ASI224. It can be a struggle if there are bright stars in the FOV because the full well isn't massive. I'll probably use gain 61 from now on as thats where HCG mode starts and gives better dynamic range with only a little more read noise.

I may also do some shorter exposures on some of my images and do some HDR processing.

Edited April 23, 2020 by cuivenion