Hemisphere:  Northern  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077
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M81 Group - 47 hours, 



    
        

            psemil
M81 Group - 47 hours
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Technical card

Imaging telescopes or lenses: Custom Newton 8''  ·  Teleskop-Service ED APO 90/500

Imaging cameras: QHYCCD QHY9M  ·  Canon EOS 1000D / Rebel XS

Mounts: Sky-Watcher EQ6 Pro

Focal reducers: 0,73x reducer/corrector ASA Keller Corrector/Reducer

Accessory: Teleskop-Service TS Off Axis Guider 9


Dates:Jan. 29, 2012March 14, 2012March 26, 2012

Frames:
180x240" ISO800
Astronomik CLS CCD2 Filter: 39x1200" -30C
Astrodon H-alpha 5nm: 45x1800" -30C

Integration: 47.5 hours

Avg. Moon age: 10.31 days

Avg. Moon phase: 34.67%

Bortle Dark-Sky Scale: 4.00


Basic astrometry details

Astrometry.net job: 3925150

RA center: 9h 57' 52"

DEC center: +69° 7' 19"

Pixel scale: 1.695 arcsec/pixel

Orientation: 123.983 degrees

Field radius: 1.071 degrees


Resolution: 3800x2500

Locations: Secu, Resita, Romania

Data source: Backyard

Description

Collaboration with Emil Kolbert

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psemil
psemil
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M81 Group - 47 hours, 



    
        

            psemil