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Contains:  M 81, Bode's nebulae, NGC 3031
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M81 Luminanse with 600 and 60 sec. exposures, 





    
        

            Erik Guneriussen
M81 Luminanse with 600 and 60 sec. exposures

M81 Luminanse with 600 and 60 sec. exposures

Technical card

Resolution: 1344x978

Frames:
Astrodon LRGB CCD Imaging Filters (E-Series): 12x60"
Astrodon LRGB CCD Imaging Filters (E-Series): 20x600"

Integration: 3.5 hours

Astrometry.net job: 283305

RA center: 9h 55' 33"

DEC center: +69° 0' 36"

Orientation: -82.563 degrees

Field radius: 0.403

Description

The sub exposures of 60 and 600 seconds are added by use of the Pixinsight process HDRComposition. Compression is done after initial stretch by HDRMultiscaleTransform

Comments

Author

erikgu
Erik Guneriussen
License: None (All rights reserved)
3271
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Revisions

  • M81 Luminanse with 600 and 60 sec. exposures, 





    
        

            Erik Guneriussen
    Original
  • Final
    M81 Luminanse with 600 and 60 sec. exposures, 





    
        

            Erik Guneriussen
    B

Sky plot

Sky plot

Histogram

M81 Luminanse with 600 and 60 sec. exposures, 





    
        

            Erik Guneriussen