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


            Van H. McComas
M42 – Orion Nebula – Unguided

M42 – Orion Nebula – Unguided

Technical card

Resolution: 2801x1848

Dates:March 18, 2018

Frames: 10x1"

Integration: 0.0 hours

Avg. Moon age: 0.95 days

Avg. Moon phase: 1.01% job: 1974919

RA center: 83.845 degrees

DEC center: -6.032 degrees

Pixel scale: 5.207 arcsec/pixel

Orientation: 348.574 degrees

Field radius: 2.427 degrees

Locations: Van McComas, Gloucester, Virginia, United States

Data source: Backyard


M42 – Orion Nebula – Unguided

Since January I have had cloudy nights, rain, snow, extremely cold temperatures, or high winds, except for last night. (Also I was out a week on recovery). I am still on Impulse Engines but I was “allowed” to go out to the end of the driveway and spend about 15 minutes setting up and taking 10 Lights, 10 Darks, 10 Dark Flats, I did 10 Flats of the blue sky earlier. I used my Canon Rebel T7i with the 300 mm Rokinon lens on a tripod, ISO 6400, 0.8 seconds, f/6.3 (fixed). I used Deep Sky Stacker, Star Tools, and Canon Digital Photo Professional for post processing.



Van H. McComas
License: None (All rights reserved)

Sky plot

Sky plot


M42 – Orion Nebula – Unguided, 


            Van H. McComas

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Cloudy Nights