The Swan Nebula

M17- The Swan Nebula in Sagittarius

by Bob and Janice Fera

Parallax Instruments 12.5" f/9 Ritchey Chretien

Yankee Robotics Trifid-2 6303E

Astrodon Filters

LHaRGB Composite - 60:120:80:80:80 minute exposures

LRGB Sub-exposures: 10-minutes, Ha Sub-exposures: 30-minutes, RGB binned 2x2

CCDstack, MaxIm/DL with RC-Astro plugin, AIP4WIN, and Adobe Photoshop

Taken June 29-30, 2006 from Eagle Ridge Observatory, Foresthill, CA

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