RE: [APML] NGC 6946

["Jeff Ball" <jeffball@zoominternet.net>]

Tony,
That is a wonderful image.  My first thoughts are to use the Matt
BenDaniel starshaping technique on the green channel.  If you can, it
would be nice to see a before and after crop of a star that you cleaned
up.  Just to see how much the channels can differ.  Thanks.

Jeff Ball
www.astro-photography.com

-----Original Message-----
From: astro-photo-bounces@seds.org [mailto:astro-photo-bounces@seds.org]
On Behalf Of Tony Hallas
Sent: Wednesday, July 09, 2003 12:20 PM
To: Discussion of Film Astrophotography
Subject: Re: [APML] NGC 6946 

Hello all,
 
    I better post this before you read somewhere in some obscure
headline "Astrophotographer commits suicide over astro image..."
 
    Bad seeing makes it almost impossible to make a CCD work ... they're
just too sensitive ... but I did what I could to make this fly... the
worst thing that happened was really bad seeing during the green
exposure... all the stars bloated in relation to the rest of the colors,
so that when the RGB was combined, there were nice green rings around
the stars ... wonderful! If anyone knows some way to deal with that, I
would sure like to know. I had to fix this the hard way ... star by star
... I must be nuts.
 
     http://www.astrophoto.com/NGC6946.htm
 
    Comments always welcome...
 
         Tony



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