M13 - Globular Cluster in Hercules

by Bob and Janice Fera

Parallax Instruments 12.5" f/9 Ritchey Chretien

Yankee Robotics Trifid-2 6303E

Astrodon Filters

LRGB Composite - 180:75:75:75 minute exposures

15-minute sub-exposures, all unbinned

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

Taken May 18, 28, 29, 2006 from Eagle Ridge Observatory, Foresthill, CA

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