M99

Started by jthommes, 04/26/2008 10:12PM

Posted 04/26/2008 10:12PM | Edited 04/27/2008 07:56PM Opening Post

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Join Date: Jan 2003

Location: San Diego CA, US

Posts: 1418

Boy oh boy, it is amazing what some wind and less than average seeing can do to these small galaxies. Oh well, it is always fun under the stars. Here is the result of the effort - a kinda soft M99:

http://jthommes.com/Astro/M99.htm

C8 at f/7.5
Artemis285 LRGB filters
G11/Gemini
Guiding - Megrez II at 1350 mm FL, DSI Pro, K3CCDTools

I am thinking that under these conditions I am better off getting more signal with either longer subs, or higher binning, or both. I don't think I got any benefit from a 1x1 bin on the luminance. Or maybe the better choice is to not image these subjects in these conditions.

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Jim Thommes

Mak-Newt 152 mm
C8
Megrez II APO
Zenithstar 66 mm APO
G11/Gemini
ST8300M
Artemis285 Camera
Canon 350D DSLR

http://jthommes.com/Astro/

Posted 04/26/2008 11:23PM | Edited 04/26/2008 11:24PM #1

Forum Member

Join Date: Mar 2003

Location: Bakersfield CA, US

Posts: 4913

Hi Jim, still not bad and you had a night to play! grin

I am heading out tonight to try to get M106 and company. Hope things work out. wink

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[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue grin

Amateur Imager

Posted 04/27/2008 12:07AM | Edited 04/27/2008 12:07AM #2

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Join Date: Oct 2001

Location: wasilla AK, US

Posts: 495

Sure a bit soft but very clean. I have not heard of that camera before. The way I see it, I've got lots to learn still so I would still try under those conditions. What is the best use of softer nights, shooting colors 2x2?

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