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Crescent Nebula

Started by jthommes, 09/17/2007 03:42AM
Posted 09/17/2007 03:42AM Opening Post
Greetings All,
I made an image of the Crescent - NGC6888. This was an Ha enhanced LRGB with the Ha providing a lot of the detail in the Luminance.

Full size image and exposure / processing details at:

http://jthommes.com/Astro/NGC6888.htm
(be sure to click on the image for full size)

This was done with my C8 - Artemis Camera and G11/Gemini. I am guiding these days with a new DSI Pro (terrific prices these days).

I had imaged the Crescent back in July of 2004. You can take a peak at that image here:

http://jthommes.com/MiscAstro/Archives/NGC6888.htm

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 09/17/2007 03:53AM #1
Always a beautiful object, the Crescent. Well done Jim!

Tom

Starsearch Observatory
Lat 42N 47' 00" Long 112W 10' 47"
Elev 1752m
www.tvdavisastropics.com
Posted 09/17/2007 09:08AM #2
that is really a beautiful result, Jim!
one of your very best images!
congrats! smile

clear skies, guys!
Dietmar
---
www.stargazer-observatory.com
Posted 09/17/2007 12:18PM #3
Posted 09/17/2007 02:55PM #4
Fine detail, Jim.
A lot of people have trouble with the dynamic range of the Crescent and oversaturate the 'shoulders', but you've done well to preserve the detail throughout.

dan
Posted 09/17/2007 03:02PM #5
Jim, That is an extremely beautiful version of the Crescent! The focus is great: the colors are beautiful: and the whole thing just shimmers. Nicely done Jim!
Cheers,
Tyler

"The expression of the beautiful is in direct ratio to the power of perception acquired by the artist." (Gustave Courbet)
Posted 09/18/2007 04:26AM #6
Thanks folks for the comments - they are much appreciated.


dan kowall said:

Fine detail, Jim.
A lot of people have trouble with the dynamic range of the Crescent and oversaturate the 'shoulders', but you've done well to preserve the detail throughout.

dan

Dan, I know what you mean about the shoulders. I did compress the range quite a bit to preserve details in the shoulders. I worried it would look too flat - and it does in mono, but the color helps a lot.

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/