The Ring Nebula

74. The Ring Nebula


Messier 57  RA: 18h 53.3'  Dec: +33 04'   Lyra (Lyr)

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The Ring Nebula (also catalogued as Messier 57, M57 or NGC 6720) is a planetary nebula in the mildly northern constellation of Lyra. Such a nebula is formed when a star, during the last stages of its evolution before becoming a white dwarf, expels a vast luminous envelope of ionized gas into the surrounding interstellar space.
 

Image Information

Location Various
Date Various
Optics C8/AT8IN
Filters None/Baader MPCC
Mount Celestron CGE
Camera Canon Rebel XT/Canon/Hutech T1i
ISO 800
Subexposures 7
Exposure Length 300/150
Guider Stellarvue Nighthawk II/WO ZS66SD ST-4
 

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All images copyright © 2006-2021, Rick Saunders
Main text descriptions sourced from Wikipaedia.
Sky position information is based on IP geolocation and is therefore approximate.