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NGC7023 (Iris nebula), 



    
        

            Salvatore Iovene
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NGC7023 (Iris nebula)

Acquisition details

Dates:
Aug. 13, 2011
Frames:
60×180(3h) ISO1600
Integration:
3h
Avg. Moon age:
14.50 days
Avg. Moon phase:
99.92%

RA center: 21h01m30s.76

DEC center: +68°0947.10

Pixel scale: 6.792 arcsec/pixel

Orientation: 92.818 degrees

Field radius: 0.691 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 620x388

File size: 133.5 KB

Description

(civil twilight.)

Summer’s not over yet, but clear nights shall not be wasted. With the full moon and some degree of daylight in the atmosphere, just the core of this popular reflection nebula shows in the picture. It’s the stack of sixty 180-second sub-frames.

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NGC7023 (Iris nebula), 



    
        

            Salvatore Iovene