Celestial hemisphere:  Northern  ·  Constellation: Lyra (Lyr)  ·  Contains:  HD181470  ·  HD181655  ·  NGC 6791
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NGC6791, legnol
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NGC6791

Getting plate-solving status, please wait...
NGC6791, legnol
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NGC6791

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Description

The open cluster NGC6791 is in the Lyra constellation . 
It is 8 billion old with a huge amount of star for an open cluster. 

it is the first light of a brand new TS RC8 , metal tube. I use a ccd47 reducer which give me 1156mm focal lenght


I struggle to colimate this new scope but with the ocal collimator and a tri-bathinov , i finally almost made it ,. The center is quite good , corner are not so bad , i dont know if i need to try to refine it , as i m using this scope for small center target

the image is a 2H long with 60s sub , at full moon .

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NGC6791, legnol