Abell
2151
The
Hercules Galaxy Cluster
Abell
2151 - The Hercules Galaxy Cluster
by
Bob and Janice Fera
Parallax
Instruments 12.5" f/9 Ritchey Chretien
Yankee
Robotics Trifid-2 6303E
180
minute exposure
30-minute
sub-exposures
CCDstack,
MaxIm/DL with RC-Astro plugin and Adobe Photoshop
Taken
May 30, 2006 from Eagle Ridge Observatory, Foresthill, CA
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