Contains: IC 430, NGC 1999, M 43, NGC 1982, NGC 1977, NGC 1980, M 42, Great Nebula in Orion, NGC 1976, NGC 1975, NGC 1981, NGC 1973, The star 49Ori, The star σOri, The star 45Ori, The star ιOri, The star θ2Ori, The star θ1Ori, The star 42Ori, The star υOri
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M42 Region

Technical card

Imaging telescope or lens: Olympus Zuiko 200mm f/4

Mount: Celestron CG5 ASGT

Guiding telescope or lens: Orion 50 mm mini guider

Guiding camera: Orion USA Star Shoot Auto Guider

Software: Backyard EOS 3.1.8PHDPhotoshop CS5MLUnsold Images Plus

Resolution: 2538x1636

Dates: Feb. 17, 2017

Frames: 25x300" ISO800

Integration: 2.1 hours

Darks: ~10

Avg. Moon age: 20.97 days

Avg. Moon phase: 62.36%

Bortle Dark-Sky Scale: 4.00

Temperature: 14.00 job: 1463274

RA center: 83.837 degrees

DEC center: -5.519 degrees

Pixel scale: 8.860 arcsec/pixel

Orientation: -115.247 degrees

Field radius: 3.716 degrees

Locations: Cherry Grove, Kenyon, Minnesota, United States


Lens used at f/5.6; camera modded by Gary Honis.



Dave Venne

Sky plot

Sky plot


M42 Region, 


        Dave Venne