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Viel Nebula in Narrowband

Started by Melnmarn, 06/17/2007 03:26PM
Posted 06/17/2007 03:26PM | Edited 06/17/2007 03:30PM Opening Post
Well, a couple of nights ago, the rain stopped, the clouds cleared, and I finally got the opportunity to fire up my observatory and do some imaging. So I went to the Veil nebula and took some 15 minute subs, in Ha, OIII and SII. I managed an hour total of each, and here are the results.
So what do you think?

Williams Optics Zenithstar 105, ST-2000xm, CFW10, Astrodons, Remote guide head, on a G-11 Gemini.



Attached Image:

Melnmarn's attachment for post 37537

[COLOR="Blue"]Wayne[/COLOR] 8O
_________________________________________________________
Never stop looking up!!

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Takahashi TAO-130on a Losmandy G-11 Gemini 4
Williams Optics Zenithstar 105 APO on a G-8 Gemini 4 (Field setup)
ST2000XM with CFW10/L-R-G-B-Ha-SII-OIII filters
Home Built backyard Observatory
Understanding Wife.. 8)
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Posted 06/17/2007 03:32PM #1
Nice image Wayne.

Greg.
Posted 06/17/2007 09:08PM #2
Nice work Wayne !

Regards


LouieĀ  8)

www.atalas.net
Posted 06/17/2007 10:05PM #3
Wayne,
Very nice! How are the colors mapped?


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 06/18/2007 01:30AM #4
I really like how well you got the color balance with this image...

Nice Work smile
Posted 06/18/2007 01:30AM #5
I really like how well you got the color balance with this image...

Nice Work smile
Posted 06/18/2007 12:51PM #6
Sweet shot Wayne! 8)

Ivan Gastaldo 8)
Coconut Creek, FL

Ivan's Observatory
Lat 26N 16' 48" Long 80W 10' 48"
[COLOR="Red"]Personal Website:[/COLOR] http://www.ivangastaldo.com

CCD Imaging and Processing/Deep Sky - Moderator
I like to complain about everything - Moderator
Posted 06/18/2007 12:53PM #7
Great job, Wayne! The color mappings look almost RGB. I might try reframing it a bit to fit more of the nebula in the FOV (especially since you have the remote guide head and are therefore not dependent on finding a guide star), but I'm picking at nits here.

I'm also seeing a slight left-to-right elongation in the stars. Is that present in the subexposures? If not (i.e., stars in individual subs are round), I would suggest looking at your alignment process a little more closely. I had a similar situation last year, and I was beginning to doubt my optics. It turned out that I just needed to realign my frames (in my case the master H-alpha, SII and OIII images) a little more closely.

HTH,
Eric