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M 57, Ring Nebula
Submitted November 30, 2012 by Planewave Instruments
© Jimenez, ManuelMount: Paramount ME
Camera: FLI PL 16803 Without Cover Slip
Filters: Astrodon Ha 3nm, OIII 3nm, FLI LRGB
Date: August-October 2011
FWHM: 2″
Processing: Pixinsight
Ha+OIII+L : Ha+R : OIII+G : OIII+B
Total Exposure: 51 hours
Ha: 60×1800 seconds (30 hours)
OIII: 15×1800 seconds (15 hours)
L: 20×600 seconds (3 hours)
R bin 2×2: 12×300 seconds (1 hour)
G bin 2×2: 12×300 seconds (1 hour)
B bin 2×2: 12×300 seconds (1 hour)