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