Stefan Lilge wrote:

Here is the colour version of my M101 shot.

Taken from the middle of Berlin with a 10" Meade ACF at f/5.7 on a G11
mount, SXV-H9 camera, 109x5 minutes for L and 12x5 minutes binned each for
RGB (3x5 minutes Ha mixed into red).

The picture can also be found at
http://ccd-astronomy.de/temp/M101colourgut.jpg

Stefan


Even with the Ha data the HII regions barely show. I found that in my
LRGB image as well. Even at 1" per pixel they really didn't show but
when I went to 0.5", even though seeing wasn't up to it, then they came
through. Still don't understand that. I'd have thought using some Ha
would have helped more. Guess not. At least you have imaging skies.
51 days and counting without imaging skies even for one frame. Ducking
tornados seems the hobby of late.

I've got dozens of downed trees to work on but with all the rain the
mosquitoes are so horrid no way I can work on them without at least
three blood transfusion IVs running while I work to replace what they
suck out. Never seen them so bad all day long.

Rick

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Third character is a zero rather than a capital "Oh".