hi guys,
I had to do something else than moon imaging these days,...so I reprocessed the image of ngc 4449.
I had picked up some color artefacts, which I hadn`t noticed in the first olace around the bright stars.
this came from using "color range" when working on the colors of the galcxy, without realizing that the stars were "touched" also...
so here we are.
let me remind You of the data on the image first:
NGC 4449
irregular galaxy
date: 14th of april 2007
location: 35 km north of linz, 740m elevation - Austria
9" TMB Apo f/9
SXV H16
seeing 5-6/10
transp 8/10
3 hours luminance (2,4,8,12 minutes)
6x9 min R
6x5 min G
6x10 min B
(colors 2x2 bin)
preprocessing in AstroArt and Maxim DL
postprocessing in Ps CS2 and PixInsight LE
the image:
more data and full sized version here:
http://stargazer.christelhager.info/sonic/index.html
thanks for looking again, guys!
Dietmar
I had to do something else than moon imaging these days,...so I reprocessed the image of ngc 4449.
I had picked up some color artefacts, which I hadn`t noticed in the first olace around the bright stars.
this came from using "color range" when working on the colors of the galcxy, without realizing that the stars were "touched" also...
so here we are.
let me remind You of the data on the image first:
NGC 4449
irregular galaxy
date: 14th of april 2007
location: 35 km north of linz, 740m elevation - Austria
9" TMB Apo f/9
SXV H16
seeing 5-6/10
transp 8/10
3 hours luminance (2,4,8,12 minutes)
6x9 min R
6x5 min G
6x10 min B
(colors 2x2 bin)
preprocessing in AstroArt and Maxim DL
postprocessing in Ps CS2 and PixInsight LE
the image:
more data and full sized version here:
http://stargazer.christelhager.info/sonic/index.html
thanks for looking again, guys!
Dietmar
Attached Image:
clear skies, guys!
Dietmar
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www.stargazer-observatory.com
