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Contains:  M 43, NGC 1982, M 42, Great Nebula in Orion, NGC 1976, The star θ2Ori, The star θ1Ori
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The Great Orion Nebula - M42 - Composite and Mosaic, 


            Corey Rueckheim
The Great Orion Nebula - M42 - Composite and Mosaic

The Great Orion Nebula - M42 - Composite and Mosaic

Technical card

Resolution: 3772x4205

Dates:Nov. 23, 2019

99x1" -25C bin 1x1
6x40" -25C bin 1x1
20x5" -25C bin 1x1

Integration: 0.1 hours

Darks: ~20

Flats: ~180

Avg. Moon age: 26.10 days

Avg. Moon phase: 12.77%

Temperature: -12.00 job: 3086382

RA center: 5h 35' 12"

DEC center: -5° 27' 32"

Pixel scale: 0.372 arcsec/pixel

Orientation: 359.898 degrees

Field radius: 0.292

Locations: Lafayette Home, Sparta, WI, United States

Data source: Backyard


This image of the Great Orion Nebula, Messier 42, with De Mairan's Nebula, Messier 43, is my first attempt at making a composite image, and also my first attempt at a mosaic image. It is a composite of three sets of different exposures for the bright central areas of M42 and M43, plus an additional set of exposures centered further south (down in this image) mosaic'd with the other sets to show more of the faint nebulosity. I then increased the saturation of the colors more than I normally do because I felt it really adds to the impact of the final image.

The mosaic turned out perfect I think, and I will definitely try a 2x2 mosaic of some larger object at some point. I'm not as satisfied with the areas of the image affected by the compositing, but I think its a good first attempt!



Corey Rueckheim
License: None (All rights reserved)

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The Great Orion Nebula - M42 - Composite and Mosaic, 


            Corey Rueckheim

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Central USA