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Pickering's Triangle

Started by jthommes, 08/22/2006 04:43AM
Posted 08/22/2006 04:43AM Opening Post
Bruce just posted a nice image of this same object in a wider field. Here is one I did with RGB data.

A full size image with exposure and processing details are at:

http://jthommes.com/Astro/NGC6979.htm

Scope - Megrez II APOgrade, Camera - Artemis285.





Attached Image:

jthommes's attachment for post 33077

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 08/22/2006 04:51AM #1
Great shot Jim ! this shot has a real gostly look 8O

Regards


LouieĀ  8)

www.atalas.net
Posted 08/22/2006 05:28AM #2
Posted 08/22/2006 02:50PM #3
That's a wonderful field of view, Jim, with lots of detail in the Triangle.
You've framed it well.
This is a dim one, isn't it? It barely shows up in my framing shots.
Shooting at f/3.8 has served you well in the center of the image, but betrayed itself in the corners a bit. There's always a price to be paid, I guess.
My regards,

dan

Posted 08/23/2006 03:14AM #4
Thanks all for the comments...

Dan, Yeah pretty dim and yes the stars get kinda weird at the edges with the agressive f/3.8. The stretch is pretty hard as well - further complicating artifacts and other issues.

So based on some advice I had received, I did a second quick process that reduced the stretch and some of the saturation as well. I attached the result, but full size is here:

http://jthommes.com/Astro/images/NGC6979_MegRini15_PS3GB.jpg

Original is here:

http://jthommes.com/Astro/images/NGC6979_MegRini15_PS2GB.jpg

I am wonder which people like best?


Attached Image:

jthommes's attachment for post 106553

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/