M51
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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