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Contains:  M 81, Bode's nebulae, NGC 3031
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M81 - LHaRGB, 





    
        

            Pascal Gouraud
M81 - LHaRGB

Technical card

Resolution: 2940x1654

Dates:March 26, 2019

Frames: 66x180"

Integration: 3.3 hours

Avg. Moon age: 20.55 days

Avg. Moon phase: 66.65%

Astrometry.net job: 2662998

RA center: 148.896 degrees

DEC center: 69.070 degrees

Pixel scale: 0.783 arcsec/pixel

Orientation: 129.589 degrees

Field radius: 0.367 degrees

Data source: Backyard

Description

M81 taken in my garden in Britany (France). Quite significant pollution but with Pixinsight (1st tentative for image processing), I have been able to remove that with the Dynamic Background Extraction process....(crop version)
3H and 18 minutes of total duration with ASI 1600 at -25d and unity gain
Luminance : 19x180sec
Ha : 20x180sec
RVB = 27x180sec
35 Bias, 45 Darks, 15 Flats per filter

Comments

Author

skypgo35
Pascal Gouraud
License: Attribution-NonCommercial-ShareAlike Creative Commons
1252
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Revisions

  • Final
    M81 - LHaRGB, 





    
        

            Pascal Gouraud
    Original
  • M81 - LHaRGB, 





    
        

            Pascal Gouraud
    B

Sky plot

Sky plot

Histogram

M81 - LHaRGB, 





    
        

            Pascal Gouraud

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