RE: [APML] NGC 6888 Ha (Ha/RGB)

["Chris Schur" <cschur@cybertrails.com>]

Brian, that is an extraordiary image, look like waves rippling on a beach.
Only the deepest images show this effect, congratulations!  the color is
"salmon - orange" on my monitor.  perhaps a bit too much yellow.  A
consequence of Ha/RGB images ive seen.

Chris

-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of Brian Lula
Sent: Thursday, September 05, 2002 9:40 AM
To: astro-photo@seds.org
Subject: [APML] NGC 6888 Ha (Ha/RGB)



I was able to use the RGB's of NGC6888 I took last year with the FLI
IMG6303E and colorized
the first Ha I took last week of NGC6888.  Here are the results:


http://www.heavensgloryobservatory.com/Color_Jpegs/ngc6888FHaGBweb.jpg

The Ha was exposure 20x6 min long, while the RGB's were 10x2min respectively
all in 2x2 bin
mode. I averaged the R/Ha frame for the RGB. The scope is a 20" F/4 newt.
Any ideas how to
reduce the graininess in the outlying nebulosities and improve the color
balance?


Best regards,Brian


Brian Lula
Polytec PI, Inc.
(508) 832-3456

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