NGC 6914 in Cygnus | Rod Pommier

Photographer
Rod Pommier
Email
pommierr@ohsu.edu
Location of photo
United States
Date/Time of photo
2013-07-18 through 2013-08-06
Equipment
Telescope/Mount: Celestron Compustar C14 with Astrophysics 0.75x focal reducer (f/8.3) Location: Pommier Observatory Portland, OR, USA. Camera: SBIG STL 11000M with Baader Planetarium H-alphaLRGB filters. Exposures: H-alpha:L:R:G:B=630:90:120:120:120=18 hours, 10 minutes total exposure
Description
NGC 6914 lies 6,000 light-years away in Cygnus and is a very rare region in which one can see all three classes of nebulae, red emission, blue reflection, and dark obscuring, within a very small expanse of sky. The broad expanse of hydrogen gas is re-emitting red hydrogen alpha light as a result of ionization from the ultraviolet light from several hot stars of the Cygnus OB2 association. These stars also illuminate the blue reflection nebulae of residual dust from their formation. The entire tableau silhouettes numerous dark nebulae also being sculpted by the stellar winds emitted by these stars.
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