North American and Pelican Nebulae - Emission Nebulae in Cygnus
by Bob and Janice Fera
Stellarvue SV4 4" f/6.4 Refractor with Televue 0.8x Reducer/Flattener
Yankee Robotics Trifid-2 6303E CCD Camera
Astrodon filters
LRGB composite - L:120 minutes, RGB:50 minutes each
Sub-exposures: 10 min, RGB binned 2x2
Image acquired with CCDAutopilot
Processed in CCDstack, MaxIm/DL (with RC-Astro plug-in), and Adobe Photoshop
Taken August 19, 21, 2006 from Eagle Ridge Observatory, Foresthill, CA
Note: This is an early test image with the SV4 refractor. The elongated edge stars were caused by grossly improper spacing between the Reducer/Flattener and the CCD detector.