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Contains:  M 81, Bode's nebulae, NGC 3031
Getting plate-solving status, please wait...
M81, 





    
        

            SJK

M81

Technical card

Resolution: 4892x2918

Dates:Oct. 25, 2018

Frames: 564x90"

Integration: 14.1 hours

Darks: ~25

Bias: ~200

Avg. Moon age: 15.57 days

Avg. Moon phase: 99.27%

Bortle Dark-Sky Scale: 8.00

Mean SQM: 18.36

Mean FWHM: 4.10

Temperature: 9.00

Astrometry.net job: 2332933

Locations: Home, Genève, Switzerland

Data source: Backyard

Description

L 149 x 90 sec (gain 0, offset 10)
R 122 x 90 sec (gain 100, offset 10)
G 137 x 90 sec (gain 100, offset 10)
B 156 x 90 sec (gain 100, offset 10)

Comments

Author

SJK
SJK
License: Attribution Creative Commons
3411
Like

Revisions

  • M81, 





    
        

            SJK
    Original
  • Final
    M81, 





    
        

            SJK
    B

B

Less artifacts

Histogram

M81, 





    
        

            SJK