Ring nebula in Lyrae - Messier 57 | category Astrophotography
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Rating A: 92 | B: 4 | Votes: 24
author's text: The Ring Nebula (also catalogued as Messier 57, M57 or NGC 6720) is a planetary nebula in the northern constellation of Lyra. Such objects are formed when a shell of ionized gas is expelled into the surrounding interstellar medium by a star at the end of its asymptotic giant branch phase, in the last stages of its evolution before becoming a white dwarf.

Telescope: 8" newtonian f/5 on EQ5 Pro
Camera: ZWO ASI178MC
Software: Sharpcap, DSS, Snapceed
Frames: 982 x 2 sec subs (Total - 32min 44 sec), gain 335, offset - 0.
Astroclub "ASTEROID" Plovdiv, Bulgaria
 
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