Caldwell 20 NGC 7000 North America Nebula
Constellation: Cygnus
Distance: 1.8 kly
Type: Nebula
Imaging Location: All-Star Telescopes Didsbury AB Canada
Imaging Platform: Canon XTI 50 mm
Mount: EQ6
Guiding Setup: Tracking
Exposure: 33x60 sec
Date: 2010-11-06
Software: Images Plus, Photoshop CS4
7 subs not used because of green laser tracks
Example of low red (Ha) sensitivity of an unmodded Canon