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NGC 6992 - The Network Nebula in Cygnus
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Copyright 2005 Hap Griffin
The Network Nebula is the eastern portion of the much larger complex known as the Veil Nebula, seen in a wider view here. It is part of a bubble of expanding gas and dust whose source was a supernova star that exploded in the distant past. NGC6992 lies at a distance of 1400 light years.
Date/Location:
September 3, 2005 Griffin/Hunter
Observatory Bethune, SC
Instrument: Canon 350D (modified) Digital SLR through Orion ED80 w/ Meade
.63 Focal Reducer piggybacked on LX-200
Focal Ratio: Approx. f4.5
Guiding: Auto through LX-200 w/ SBIG ST-237
Conditions: Visually clear
Weather: 65 F, still
Exposure: 85 minutes @ ISO 800 (17 x 5 min exposures) calibrated with flat
frame and Master Dark frame (average of 9 darks)
Filters: Baader UV/IR block
Processing: Focused and captured with DSLRFocus.
RAW to TIFF conversion, frame calibrations, alignment, Digital Development,
Adaptive Richardson_Lucy deconvolution, scaling and JPEG conversion with ImagesPlus.
Color correction with Photoshop 6. Noise reduction with NeatImage.