NGC 7023
The Iris Nebula
NGC 7023 - The Iris Nebula in Cepheus
by
Bob and Janice Fera
Officina
Stellare RC-360AST 14" f/8 Ritchey Chretien Cassegrain
with single-element Riccardi field flattener
Apogee Alta U16M CCD Camera
Astrodon
Filters
LRGB
Composite - 160:120:120:120 minutes
L:8x20m
R:8x15m G:8x15m B:8x15m
Image
acquired with CCDAutopilot
Processed
in CCDstack, PixInsight LE and Adobe Photoshop
Taken
August 8,9,11, 2010 from Eagle Ridge Observatory, Foresthill, CA
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