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Enhanced Uranus showing Polar Cap and possible Aurora

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M13

Started by raw265, 09/14/2008 10:50PM
Posted 09/14/2008 10:50PM Opening Post
Shot this last Wednesday. I used the in camera auto dark frame on my Canon 30D for the first time. Mixed feelings on that but I will say it did a nice job on the hot pixels. About a 95% crop of the full frame (to get rid of the mirror shadow). Also a first run with Deep Sky Stacker.

Canon 30D (not modified)
Total exposure of 5.25 minutes (21 x 15 second subs), un-guided
ISO= 1250
AP160 F7.5 EDF with 160TCC working at F5.7
AP Mach1 mount

Comments appreciated,
Robert

Attached Image:

raw265's attachment for post 43713

There's no substitute for fine glass!
Posted 09/15/2008 12:42AM #1
That's nice Robert. You can increase your exposures as you have the core- capturing the peripheral will make the globular twice as big. Say 20x3min should be great.

Ivan
Posted 09/15/2008 02:41PM #2
That's nice for a short exposure ! There's a galaxy showing up on the top.
I don't know that mount well, but I would say that with this one you can probably expose individual frames longer without guiding problems, and increase the quality and depth of the image.
Posted 09/15/2008 03:04PM #3
Nice and sharp. Its a little dark for me though but the color is good too.

Joe