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Planetary Nebula
Messier 57, Ring Nebula


Ring Nebula M57 2015
Coordinates/Direction : center of image, RA 18h54m, Dec +44 03'
Object size : 230" by 230"
Object magnitude : 7.8
Object : M57, Ring Nebula
Date : 2015-03-22
Time (UT) : 00:25 to 01:24
Mount : EQ6 Synscan and EQMOD controlled
Guide : PHD2 guide with QHY5 camera in off-axis mode
Lens/telescope : TS130, 910mm f7 (682mm, f5.3)
Corrector/Barlow : Riccardi flat field corrector 2.5" x0.75
Filter : none
camera : Canon 5D
Film/CCD : Raw
Exp. time : 30x60 seconds, ISO800
Image process tool : Fitswork, Irfanview
Processing : crop, resize, stretch, flatten
Weather : clear
Site : Stockholm, Sweden
Comment : A test photo shot from my balcony, very light polluted sky.
A planetary nebula is the left over from an old stellar explosion.

Zoom in, Messier 57, Ring Nebula

Ring Nebula M57 2015
Coordinates/Direction : center of image, RA 18h54m, Dec +44 03'
Object size : 230" by 230"
Object magnitude : 7.8
Object : M57, Ring Nebula
Date : 2015-03-22
Comment : A crop of the center, only 200x200 pixel.
More to know : Wikipedia:
https://en.wikipedia.org/ wiki/Ring_Nebula

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