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Contains:  M 43, NGC 1982, NGC 1980, M 42, Great Nebula in Orion, NGC 1976, The star ιOri, The star θ2Ori, The star θ1Ori
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M42, 





    
        

            pmumbower
M42

M42

Technical card

Resolution: 4948x3280

Dates:Dec. 18, 2018

Frames:
20x120" ISO400
20x30" ISO400
20x300" ISO800

Integration: 2.5 hours

Darks: ~10

Flats: ~50

Bias: ~25

Avg. Moon age: 10.23 days

Avg. Moon phase: 78.49%

Bortle Dark-Sky Scale: 6.67

Temperature: -5.00

Astrometry.net job: 2424277

RA center: 83.768 degrees

DEC center: -5.559 degrees

Pixel scale: 0.613 arcsec/pixel

Orientation: 97.202 degrees

Field radius: 0.505 degrees

Locations: Home Observatory, Grandville, Michigan, United States

Data source: Backyard

Description

Decided to try imaging with the Nikon D5100(stock) once again for the larger field of view with the RC8. Looks like the collimation is off in this setup compared to when the ST2000XM is mounted. Both camera are hard mounted to the ONAG, so I am not sure where the tilt is happening. Unless it is because of the weight difference, but I am not really sure about that.

Besides the above, this is my first attempt at a HDR technique in PixInsight. Prior it was many years ago with layers in PS. Pretty happy with how this turned out still since the data was taken over a few hours with a quarter moon still up and from my red zone backyard observatory.

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Author

pmumbower
pmumbower
License: None (All rights reserved)
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M42, 





    
        

            pmumbower

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