Hemisphere:  Northern  ·  Constellation: Lyra (Lyr)  ·  Contains:  M 57  ·  NGC 6720  ·  Part of the constellation Lyra (Lyr)  ·  Ring nebula in Lyra  ·  The star Sheliak (βLyr)  ·  The star Sulafat (γLyr)
M57 Widefield, 


            Ruud de Vries
M57 Widefield
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M57 Widefield

Technical card

Imaging telescopes or lenses: TS Optics 90/600 Triplet APO

Imaging cameras: Canon 60d mod

Mounts: HEQ5 Pro SynScan

Guiding telescopes or lenses: Sky-Watcher finder scope

Guiding cameras: Starlight Xpress Lodestar guider (mono)

Focal reducers: TS-Flattener 2,5"

Software: PHD Guiding  ·  Backyard EOS 3.0

Dates:June 5, 2014

Frames: 7x240"

Integration: 0.5 hours

Avg. Moon age: 7.06 days

Avg. Moon phase: 46.53%

Basic astrometry details

Astrometry.net job: 294507

RA center: 18h 54' 41"

DEC center: +33° 1' 19"

Pixel scale: 1.460 arcsec/pixel

Orientation: 167.417 degrees

Field radius: 1.267 degrees

Resolution: 620x413


Sky plot

Sky plot


M57 Widefield, 


            Ruud de Vries