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ASTRO: NGC 6745



 
 
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  #1  
Old December 7th 08, 01:05 PM posted to alt.binaries.pictures.astro
Stefan Lilge
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Posts: 2,269
Default ASTRO: NGC 6745

NGC 6745 is one of my favourite summer galaxies (or group of galaxies to be
more precise), so I reshot it in July. The image does not look too sharp,
but on the other hand you need good seeing to get a sharp picture at 0.6
arcseconds/pixel.

Taken from the middle of Berlin with a 10" Meade ARC at f/9 on a G11 mount,
SXV-H9 camera, 36x5 minutes for L, 3x5 minutes each for RGB.

The picture can also be found at
http://ccd-astronomy.de/temp2/6745colourgut.jpg

Stefan




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  #2  
Old December 7th 08, 07:06 PM posted to alt.binaries.pictures.astro
Rick Johnson[_2_]
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Posts: 3,085
Default ASTRO: NGC 6745



Stefan Lilge wrote:

NGC 6745 is one of my favourite summer galaxies (or group of galaxies to be
more precise), so I reshot it in July. The image does not look too sharp,
but on the other hand you need good seeing to get a sharp picture at 0.6
arcseconds/pixel.

Taken from the middle of Berlin with a 10" Meade ARC at f/9 on a G11 mount,
SXV-H9 camera, 36x5 minutes for L, 3x5 minutes each for RGB.

The picture can also be found at
http://ccd-astronomy.de/temp2/6745colourgut.jpg

Stefan


That is a good shot. I did it last year at 1" per pixel as that was all
my seeing was supporting. Didn't get the detail you have. I had a few
nights this summer of seeing that would have supported 0.5". I should
have gone for it. Wasn't thinking but Arp galaxies at the time. Odd
that this "one" didn't make his list.

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

 




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