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Seagull Nebula - HA-RGB

Started by jthommes, 02/19/2006 12:02AM
Posted 02/19/2006 12:02AM Opening Post
This is a two frame mosaic of the Seagull Nebula. This is somewhat compressed. Check out the full size image (and exposure / processing details) at:

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

Scope was Megrez II, camera was Artemis285
HA:R:G:B 84:16:16:16 combined exposure for bothe mosaic frames.

Attached Image:

jthommes's attachment for post 29853

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 02/19/2006 04:37AM #1
Jim,

It's a stretch, but at the orientation of your presentation it looks like another Witch Head nebula with Gum 1 as its nose, the dark indentation to Gum 1's lower right the Witch's mouth, and the bright star at the bottom of the nebula a hmmm.... pimple on the witch's neck?

Just a sorry attempt at my personal Rorshach (sp?) test of these objects.

Great shot!

Eric
Posted 02/20/2006 01:00AM #2
Thanks for the comments guys.

Eric, Witch Head you think? Well maybe so. Perhaps that's what I should call it considering my sorry attempt at the real Witch Head.


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 02/20/2006 10:11PM #3
That's another fine effort from you, Jim.
The colors look right on, the mosaic is seamless, and it's nicely framed.
My only suggestion would be to reduce the sharpening and/or noise reduction a bit. There's a bit of mottling in the background from this procedure.
My regards,

dan kowall
Posted 02/21/2006 06:59AM #4
Nicely done Jim. I appreciate the subtle colors of the nebulosity and that you have preserved the star colors.

Dean Jacobsen
www.astrophoto.net

Dean Jacobsen
www.astrophoto.net
Posted 02/22/2006 05:55AM #5
Dan, Dean,
Thanks for the comments...

Dan, I did use noise reduction while the background level was a bit high. The motling got kind of noticeable as a result.

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/