M57 Ring Nebula
M57 Ring Nebula
Ha OIII SII Image Ha 10hrs OIII 9hrs SII 9hrs
M57 is in the constellation Lyra it is approximately 2300 light years from earth. It was discovered in January 1779 by Antoine Darquier de Pellepoix M57 is a planetary Nebula known as a Bipolar nebula whose thick equatorial rings visibly extend the structure through its main axis of symmetry. This object also has a large amount of Ha OIII and SII making it a very good tri color target for Narrowband imaging
Ha OIII BiColor Image Ha 10hrs OIII 9hrs
20min Ha Frame
20min OIII Frame
20min SII Frame
M57 20min Ha Subframes x 30 = 600min combined image
M57 20min OIII Subframes x 24 = 480min combined image
M57 20min SII Subframes x 26 = 560min combined image
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Scope Planewave 17in
CCD Apogee U16
Mount Paramount ME
Filters Astrodon Ha 5nm OIII 3nm
Exposures Ha10hrs 30x20min OIII9hrs 27x20min SII9hrs 27x20min
Location: Sierra Nevada Mountains CA. Heavens Mirror Observatory SRO 2011 – 2013