North American and Pelican Nebulae
Cygnus
Imaged from my backyard
observatory in Knoxville, TN
September 3/4, 2005
Nikon 180mm f/2.8 ED lens @f/5.6 with
custom
robofocus
ST 10XME CCD / Astronomik
HaR :G:
B (Astrodon
) filters
(60+15):15:15
Compare
with earlier straight Ha image of this field
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