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Contains:  NGC 3077, M 82, NGC 3034, M 81, Bode's nebulae, NGC 3031
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M81, M82, NGC3077, Holmberg IX, 





    
        

            Kees Scherer
M81, M82, NGC3077, Holmberg IX

M81, M82, NGC3077, Holmberg IX

Technical card

Imaging telescope or lens:Skywatcher 100 Esprit APO F5.5

Imaging camera:QHYCCD QHY16200A Mono

Mount:10Micron GM2000HPS II

Software:Astro Pixel ProcessorPixInsight 1.8

Filters:BGR

Accessory:ScopeDome 2M

Resolution: 2648x1924

Dates:Dec. 13, 2017Feb. 8, 2018

Frames:
B: 55x300" (gain: 1.00) -20C bin 1x1
G: 61x300" (gain: 1.00) -20C bin 1x1
Baader Ha 6nm: 104x600" (gain: 1.00) -20C
R: 61x300" (gain: 1.00) -20C bin 1x1

Integration: 32.1 hours

Darks: ~40

Flats: ~25

Bias: ~150

Avg. Moon age: 24.05 days

Avg. Moon phase: 30.92%

Astrometry.net job: 1958949

RA center: 149.484 degrees

DEC center: 69.126 degrees

Pixel scale: 2.229 arcsec/pixel

Orientation: 268.503 degrees

Field radius: 1.013 degrees

Locations: Knight Observatory,Quinta Castelo Novo, Serra de Tomar, Portugal

Data source: Backyard

Comments

Author

keesscherer
Kees Scherer
License: Attribution Creative Commons
1911
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Revisions

  • M81, M82, NGC3077, Holmberg IX, 





    
        

            Kees Scherer
    Original
  • Final
    M81, M82, NGC3077, Holmberg IX, 





    
        

            Kees Scherer
    B

Sky plot

Sky plot

Histogram

M81, M82, NGC3077, Holmberg IX, 





    
        

            Kees Scherer

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