The Whirlpool Galaxy

M51 - The Whirlpool Galaxy in Canes Venatici

by Bob and Janice Fera

Parallax Instruments 12.5" f/9 Ritchey Chretien

Yankee Robotics Trifid-2 6303E

Astrodon Filters

LRGB Composite - 180:80:80:80 minute exposures

20-minute sub-exposures, RGB binned 2x2

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

Taken April 30 and May 1, 2006 from Eagle Ridge Observatory, Foresthill, CA

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