Posted on July 14, 2014 Updated on July 18, 2014
LRGB 8 x L, R, G, B x 2 min
Frames: 20 x 1 m Ha, SII, OIII
Mix R= 0.50*Ha+0.50*SII – G = 15*Ha+85*OIII – B=OIII
This entry was posted in Astro and tagged Lyra, M57, Nebula, Ring Nebula.
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