Imaging telescopes or lenses: Canon EF 600mm f/4 L II
Imaging cameras: Canon 5D mark III
Mounts: Orion Atlas EQ-G
Guiding telescopes or lenses: ORION 80mm Short Tube
Software: BackyardEOS v3 · PixInsight PixInsinght · Adobe Photoshop CC (64 Bit) · Astronomy Tools
Dates:June 8, 2015 , June 12, 2015
Frames:
30x420" ISO400 24C bin 1x1
25x420" ISO400 26C bin 1x1
Integration: 6.4 hours
Darks: ~20
Flats: ~30
Bias: ~100
Avg. Moon age: 23.05 days
Avg. Moon phase: 41.41%
Bortle Dark-Sky Scale: 4.00
Mean SQM: 21.32
Mean FWHM: 4.00
Temperature: 18.00
Astrometry.net job: 668826
RA center: 18h 5' 37"
DEC center: -23° 55' 33"
Orientation: -178.533 degrees
Field radius: 2.139 degrees
Resolution: 620x929
Locations: East Quincy Dark Site (Far End), Aurora, CO, United States
Lagoon and Trifid nebulas, imaged from a dark site in eastern Colorado, about 30 minutes out of the Denver metro area. Sky darkness was around 21.4mag/sq"...not the best dark site in the world, but significantly better than imaging with heavy LP from my red zone back yard.
I have several versions here. The original was my first pass at processing, and lacked any meaningful star reduction or color and detail enhancement. Versions B, C, and D include detail enhancement and one, two, or three passes of MT star reduction in PI, respectively.
Version E: Dust lane and detail enhancement.
| Central USA |
| Cloudy Nights |
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