M31 from Bortle 8: RGBHa

tomb18

Well-known member
Here's my latest photo from the Bortle 8 skies of Montreal.
6 hours each on R, G, and B filters using 5 minute subs gain 0. and 5.5 hours of Ha with 30 minute subs.
ASI6200MM
FSQ106ED.

Highres version: https://www.astrobin.com/w1pci9/

Tom
 

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This is truly nice and amazing from a Bortle 8 sky, i don't know what is my Bortle sky here, could be 8 or 9 not sure, so i will give it a try myself one day i hope.

So, what offset did you use? And did you use guiding?
 
This is truly nice and amazing from a Bortle 8 sky, i don't know what is my Bortle sky here, could be 8 or 9 not sure, so i will give it a try myself one day i hope.

So, what offset did you use? And did you use guiding?
Hi
Gain 0, offset default (50?).
I always guide, even if it is not necessary with my mount over 5 minutes.
Tom
 
That's amazing!

I'm in a high 9 zone... call it 10 if you like as it's that washed out. No matter what I do my background just sucks, it always has gradient and other unwanted stuff.
Ok, all be in I'm working with a DSLR and no tracker yet, just AstroTracer in a Pentax camera
 
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