From: Phil Houston <pkh111@knology.net>

Date: June 19, 2006 4:36:54 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] M17- The Omega (or Swan or HorseShoe or Lobster) Nebula

Milton,

Very impressive image,  even more so when considering the sky conditions.  You've got to grab them when you can.

Phil

On Jun 19, 2006, at 4:57 PM, Milton Aupperle wrote:

Hi Folks;

After a 3 week drought, it finally cleared up last night (wasn't
supposed to) with reasonably dark skies (about Mag 2), so I was up
until 3:30 am taking images.

Here is a 4 minute exposure stack (12 frames) of M17, which I had to
push image processing wise to bring out the nebula. Transparency kept
falling over time and the background sky glow kept rising. I basically
have to throw out all pixel values below 30,000 out of 65,535 due to
light pollution.

http://groups.yahoo.com/group/Astro_IIDC/files/DSO/M17_20060619_MJA.jpg

All pertinent info is embedded in the image.

Clear skies..

Milton Aupperle