NGC 6992 - The Network Nebula in Cygnus


Copyright 2010 Hap Griffin

The Network Nebula is the eastern portion of the much larger complex known as the Veil Nebula complex.  It is caused by an expanding shockwave from a supernova that exploded in the area some 10,000 years ago.  The Nebula is not part of the remains of the original supernova star, but the result of the expanding shockwave interacting with pre-existing gases in the area heating them to millions of degrees and causing them to glow with their characteristic colors.  

NGC6992 lies at a distance of 1500 light years.


Date/Location:    July 7, 2010     Griffin/Hunter Observatory    Bethune, SC
Camera: QSI 583wsg
Filters: Astrodon E Series Generation 2 LRGB
CCD Temperature: -10 C
Instrument:    Takahashi FSQ-106N  
Focal Ratio:   f/5
Mount: AP-1200
Guiding:    Auto via the QSI camera's built in Off-Axis Guider mirror and an SBIG ST-402 Guider
Conditions:    Warm and muggy
Weather:    85 - 75 F, still
Exposure: 290 minutes total (12 x 10 min Luminance, 5 x 10 min each in RGB)
Capture: CCDAutopilot 4 w/ Maxim DL Camera Control, focused automatically w/ FocusMax   
Processing:    Frame calibrations, alignment and stacking with ImagesPlus v3.80.  Finishing in Photoshop CS4.