Sh2-73
HII Region, Hercules
Click image for 1500x1000 view

ASA N16 f3.6
AP 3600GTO "El Capitan"
SBIG STL-11000M

SBIG STL-Internal
March 2010. Cave Creek Canyon Observatory, Arizona Sky Village
Equipment:

Telescope:
Mount:
Camera:
Guider:
Filters:

- Luminance (Astrodon) 21x5 mins      = 105 mins
- Red
(Astrodon) 12x5 mins                    = 60 mins
- Green
(Astrodon) 12x5 mins                = 60 mins
- Blue
(Astrodon) 19x5 mins                   = 95 mins
 
Total Exposure Time =  5h 20m
Details:
Data Imaged remotely over 4 nights (Mar 17, 18, 19, & 20, 2010)
© 2010, David A. Churchill