The Swan Nebula

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M17 - The Swan Nebula in Sagittarius

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

HaRGB Composite - 270:90:90:190 minutes

Sub Exposures: Ha:30m RGB:20m

Image acquired with CCDAutopilot

Processed in CCDstack and Adobe Photoshop

Taken June 3-7, 2013 from Eagle Ridge Observatory, Foresthill, CA


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