The Hercules Galaxy Cluster
The Hercules Galaxy Cluster
by Bob and Janice Fera
Officina
Stellare RC-360AST 14" f/8 Ritchey Chretien Cassegrain
with two-element field flattener
Apogee Alta U16M CCD Camera
Astrodon Filters
LRGB Composite - 270:120:120:120 minutes
Sub Exposures: L:30m RGB: 20m
Image acquired with CCDAutopilot
Processed in CCDstack and Adobe Photoshop
Taken May 11, 12, 14-16, 2012 from Eagle Ridge Observatory, Foresthill, CA
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