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Messier 92


Messier 92

Acquisition:

Bortle 7 skies
Nikon D7000 camera
Orion Apex 102mm telescope, 1300mm focal length
iOptron CEM26 mount
30s x 188 frames
f/12.7
ISO 400

Processing:

Siril:

Background extraction
Photometric color calibration
Generalized hyperbolic transformation

RawTherapee:

Luminance denoising

GIMP:

Levels
Luminance curve adjustment
Slight sharpening
Slight saturation increase






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