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Cave Nebula SH2-155

Started by jthommes, 09/16/2006 06:00PM
Posted 09/16/2006 06:00PM Opening Post
Here is the Cave Nebula. This was a Ha enhanced LRGB. Full size image is at:

http://jthommes.com/Astro/SH2-155_Cave.htm

This was done with my C8 at f/3.3 and Artemis285 Astronomik 13nm Ha.

I had done this object about 2 years ago...

http://jthommes.com/MiscAstro/Archives/SH2-155_Cave.htm



Attached Image:

jthommes's attachment for post 33497

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 09/16/2006 07:43PM #1
Nice one Jim! It is fun to look back and see the improvement that has occurred over the last couple of years. Your new image is greatly improved over the old one. Keep up the great work Jim!
Cheers,
Tyler

"The expression of the beautiful is in direct ratio to the power of perception acquired by the artist." (Gustave Courbet)
Posted 09/16/2006 08:32PM #2
Simply stunning!
Larry
Posted 09/16/2006 09:30PM #3
Very nice Jim. I like the hues your images have.

Man, your C8 is sharp.

Greg.
Posted 09/17/2006 02:16AM #4
Very nice Jim!

Tom

Starsearch Observatory
Lat 42N 47' 00" Long 112W 10' 47"
Elev 1752m
www.tvdavisastropics.com
Posted 09/17/2006 05:32AM #5
Very nice work Jim.

Regards


LouieĀ  8)

www.atalas.net
Posted 09/17/2006 03:19PM #6
This is one of your best, Jim.
Great composition and color. You're even showing some of the greyish wisps near the center, which are visible only after long exposures.
Despite the short color exposures, I think your color data is good enough to increase the saturation a bit, maybe give a little kick to the blue?
F/3.3!-you're in the high speed lane.

dan
Posted 09/17/2006 04:58PM #7
Good looking image Jim,much improved over your earlier version.
You must keep that C8 meticulously collimated,it is very sharp.
Posted 09/17/2006 11:52PM #8
Thanks for the comments guys...

Dan
I might try to play with it a little more using your suggestions. I do worry about artifacts and color blotching when I try to pump up saturation on weak data. Perhaps it can take it - I was at f/3.3


Jason
You know, I have been lucky with my C8. Actually, I have only columated once. But I did it in a large indoor structure with no air currents using a camera. I tightend things up well and it has held well for me.

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/