NGC 6914

 

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.

Technical details:

Optics: Vixen VC200L @ f/6.4
Mount: Skywatcher HEQ5 Synscan Pro (belt mod)
Guiding: ST-237 guide chip of SBIG ST2000XM
Camera: SBIG ST2000XM
Filter Wheel: SBIG CFW9
Filters: Ha,L,R,G,B
CCD Temperature: 0 degrees Celsius
Constellation: Cygnus
Date: Aug 22, 2020
Location: Korinthos - Greece - Albireo Observatory 1
Exposure:
L=10x600 sec bin 1x1
R=10x300 sec bin 1x1
G=10x300 sec bin 1x1
B=10x300 sec bin 1x1
Ha=4x900 sec bin 1x1
Calibration: Darks, Flats, Bias