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M57 - The Ring Nebula
3' x 3'
1630 light years
2013 May 4 - June 1 & 4
Hyperion 12.5" Astrograph
ST-402 - OAG
1 x 1
Luminance: 48 x 10'
Color: B 20x10', G 13x10', R 15x10'
Acquisition with CCD Commander & MaxIm DL
Calibration with CCD Stack2
Processing with PixInsight
This is a small object for this telescope and needed many hours to bring out details
M57 is a planetary nebula formed by the ionized gas expelled from the central star which went from red giant to white dwarf.
For the keen observer, IC1296, a 15.5 magnitude galaxy shows up faintly at 2' of M57.
Processed with PixInsight, still a learning process.