NGC
457
The
Owl Cluster
NGC
457 - The Owl Cluster - Open Cluster in Casseopeia
by
Bob and Janice Fera
Officina
Stellare RC-360AST 14" f/8 Ritchey Chretien Cassegrain
with single-element Riccardi field flattener
SBIG
STL11000M CCD Camera
Astrodon
Filters
LRGB
Composite - 30:30:30:30 minutes
L:6x5m
R:6x5m G:6x5m B:6x5m
All unbinned
Image
acquired with CCDAutopilot
Processed
in CCDstack, PixInsight LE and Adobe Photoshop
Taken
September 15, 2009 from Eagle Ridge Observatory, Foresthill, CA
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