Gamma Cas widefield with 100D and Star 71. HaRGB

[StargeezerTim]

This was grabbed last night. 1hr of one shot RGB 3 min subs (iso 400), and 3.5. hrs of Ha in 10 min subs (iso 1600). DSS and PS. 

I found this quite difficult to process because of various gradients and it would be worth having a go at the nebula with my 150pds at some stage.

 

Here is a version using some RGB data from a year ago. It is 34 X 7 min rgb subs, same Ha used. I think using the old RGB image has improved it quite a bit. Seems the RGB is more important in areas like this whereas Ha in nebulous regions makes more of an impact.

 

[MarsG76]

nice wide field.... well done.

 

[StargeezerTim]

1 hour ago, MarsG76 said:

nice wide field.... well done.

 

Cheers, Added new image with old data to original post. 

[MarsG76]

18 minutes ago, StargeezerTim said:

Cheers, Added new image with old data to original post. 

Yeah definitely improved the image with the old data....

[StargeezerTim]

5 hours ago, MarsG76 said:

Yeah definitely improved the image with the old data....

Its 4hrs RGB vs 1 hr. Total exposure for the 2nd image is 7.5hrs vs 4.5hrs for the first. I guess that explains the difference!

[MarsG76]

5 hours ago, StargeezerTim said:

guess that explains the difference!

Very true

[Demonperformer]

So exactly how many stars are in that image ?? The second one may be better, but with twice the RGB data it is hardly surprising. For a one-nighter the first one is plenty good IMO.

[Shibby]

Maybe it's just me, but I prefer the first image! In the second, you've lost the reflection nebulosity and the stars aren't as fine.