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Contains:  M 82, NGC 3034, M 81, Bode's nebulae, NGC 3031
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M81/82, 





    
        

            Scott
M81/82

M81/82

Technical card

Resolution: 4071x2722

Dates:March 22, 2019

Frames: 55x90" (gain: 120.00) -10C bin 1x1

Integration: 1.4 hours

Darks: ~40

Flats: ~15

Flat darks: ~15

Avg. Moon age: 16.39 days

Avg. Moon phase: 97.03%

Bortle Dark-Sky Scale: 4.00

Temperature: 10.00

Astrometry.net job: 2599336

RA center: 148.907 degrees

DEC center: 69.305 degrees

Pixel scale: 0.954 arcsec/pixel

Orientation: 273.514 degrees

Field radius: 0.649 degrees

Locations: Garland Mountain, Canton, Georgia, United States

Data source: Traveller

Description

Fairly happy with this one given the conditions. Seeing was on the poor side and the moon limited integration to only 80 minutes.

Comments

Author

f300v10
Scott
License: Attribution-NonCommercial Creative Commons
1910
Like

Revisions

  • M81/82, 





    
        

            Scott
    Original
  • M81/82, 





    
        

            Scott
    B
  • Final
    M81/82, 





    
        

            Scott
    C

B

Removed the last 10 frames from the stack as the moon had risen. Also made the colors more natural

C

The second version was way to noisy, stretched to far. Toned it down on this one.

Sky plot

Sky plot

Histogram

M81/82, 





    
        

            Scott