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Messier 57 (Ring Nebula)

Technical card

Resolution: 1260x794

Dates: May 25, 2017June 16, 2017June 17, 2017June 20, 2017June 21, 2017June 22, 2017

74x120" -10C
76x60" -10C

Integration: 3.7 hours

Avg. Moon age: 24.78 days

Avg. Moon phase: 27.57% job: 1682990

RA center: 283.407 degrees

DEC center: 33.035 degrees

Pixel scale: 1.456 arcsec/pixel

Orientation: -101.547 degrees

Field radius: 0.301 degrees

Locations: William J. Maloney Observatory, Pontotoc, Texas, United States


This is Messier 57 also known as the Ring Nebula as everyone knows. I only went with subs of 2-minutes maximum but I regret this as I noticed I was obtaining a ring of nebulosity outside of the ring. It is very faint but had I shot some longer exposures it would have shown up clearly. That is a challenge for another year. :-)



WJM Observatory

Sky plot

Sky plot


Messier 57 (Ring Nebula), WJM Observatory