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Contains:  Ring nebula in Lyra, M 57, NGC 6720, IC 1296
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Messier 57 or M57 or Ring Nebula (NGC 6822) in Barnard's Galaxy, 





    
        

            Stephen Harris
Messier 57 or M57 or Ring Nebula (NGC 6822) in Barnard's Galaxy

Messier 57 or M57 or Ring Nebula (NGC 6822) in Barnard's Galaxy

Technical card

Resolution: 416x258

Dates:Sept. 29, 2016

Frames: 120x30"

Integration: 1.0 hours

Avg. Moon age: 28.14 days

Avg. Moon phase: 2.17%

Astrometry.net job: 1261722

RA center: 283.393 degrees

DEC center: 33.027 degrees

Pixel scale: 2.897 arcsec/pixel

Orientation: -71.391 degrees

Field radius: 0.132 degrees

Locations: HAS Dark Site , Columbus, Texas, United States

Description

The Ring Nebula (also catalogued as Messier 57, M57 or NGC 6720) is a planetary nebula in the northern constellation of Lyra.[5] Such objects are formed when a shell of ionized gas is expelled into the surrounding interstellar medium by a red giant star, which was passing through the last stage in its evolution before becoming a white dwarf.

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Author

astrosmh
Stephen Harris
License: None (All rights reserved)
1720
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Messier 57 or M57 or Ring Nebula (NGC 6822) in Barnard's Galaxy, 





    
        

            Stephen Harris