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Contains:  M 82, NGC 3034, M 81, Bode's nebulae, NGC 3031
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M81 and M82 Bodes Galaxy and the Cigar Galaxy, 





    
        

            Randal Healey
M81 and M82 Bodes Galaxy and the Cigar Galaxy

M81 and M82 Bodes Galaxy and the Cigar Galaxy

Technical card

Resolution: 3275x2464

Dates:March 27, 2019March 28, 2019March 29, 2019March 30, 2019

Frames:
Astrodon BLUE 36mm - Gen2 E-Series Tru-Balance: 22x600" -20C bin 1x1
Astrodon GREEN 36mm - Gen2 E-Series Tru-Balance: 15x600" -20C bin 1x1
Astrodon HA 36mm - 5nm: 19x600" -20C bin 1x1
Astrodon RED 36mm - Gen2 E-Series Tru-Balance: 18x600" -20C bin 1x1

Integration: 12.3 hours

Darks: ~50

Flats: ~50

Bias: ~100

Avg. Moon age: 22.87 days

Avg. Moon phase: 42.48%

Astrometry.net job: 2622433

RA center: 148.944 degrees

DEC center: 69.314 degrees

Pixel scale: 1.574 arcsec/pixel

Orientation: 8.504 degrees

Field radius: 0.896 degrees

Locations: Healey "Utahopia" Observatory, Kaysville, Utah, United States

Data source: Own remote observatory

Description

M81 and M82 are a pair of galaxies in the constellation Ursa Major. The pair are located approximately 10 degrees northwest of the "Big Dipper" pointer star Dubhe (Alpha Ursae Majoris). The apparent separation of the galaxies is 31 arc-minutes but at a distance of 12 million light-years, their actual distances from each other is 150,000 light years. They are the largest members of the M81 Group, a physical association of of 34 galaxies.
M81 and M82 are best seen during the spring. The image above shows M81 (Lower) and M82 (Upper)

Comments

Author

RandalHealey
Randal Healey
License: None (All rights reserved)
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M81 and M82 Bodes Galaxy and the Cigar Galaxy, 





    
        

            Randal Healey