M 57  -  Ring Nebula

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200%  crop (0.2MB)

DSLR widefield image

Object data of Messier 57

Object type: Planetary nebula
Size: 1.2'
Magnitude: 9.7 mag
Constellation: Lyr
Distance: 2,300 Ly
Notes: The Ring Nebula (M57) is a planetary nebula in the northern constellation Lyra. Faint outer shells are made visible in the above image by using additional exposures through a Ha filter.

Exposure data

Date: 2015-06-28 + 2015-07-01+02+04+05+06
Location: Nussbach / Austria (400m)
Telescope: 12" Newtonian telescope (f=1120mm)
Camera: QSI 660wsg-8 with Astrodon filters
Binning: L 1x1 / RGB 1x1 / Ha 1x1
Mount: ASA DDM85
Exposure time: L 38x2min / R 14x2min / G 14x2min / B 14x2min / Ha 76x8min
Exposure time total: 12h 48min
Notes: Image acquisition in 6 nights around full moon.