Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Nebula in Orion  ·  M 42  ·  M 43  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  NGC 1999  ·  The star 42Ori  ·  The star 45Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri
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M42 and the Running Man, 


M42 and the Running Man
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M42 and the Running Man

Technical card

Imaging telescopes or lenses: Officina Stellare HiperAPO105

Imaging cameras: Canon DSLR Canon 60Da

Mounts: Celestron Advanced VX Celestron AVX GEM

Guiding telescopes or lenses: Orion 50mm guidescope

Focal reducers: Officina Stellare flatener / reducer

Software: Nebulosity 3.1.X  ·  PixInsight PixInsinght  ·  Adobe Lightroom

Dates:Oct. 1, 2013

Frames: 40x240" (2h 40') ISO400

Integration: 2h 40'

Darks: ~20

Flats: ~30

Flat darks: ~30

Bias: ~100

Avg. Moon age: 26.07 days

Avg. Moon phase: 12.98%

Temperature: 18.00

Basic astrometry details

Astrometry.net job: 182004

RA center: 5h 35' 34"

DEC center: -5° 26' 42"

Pixel scale: 2.737 arcsec/pixel

Orientation: 118.454 degrees

Field radius: 1.396 degrees

Resolution: 620x438


M42 is a glorious mix of diffuse nebula and one of the the brightest nebulae in the sky. 2 exposure settings were used to capture more feint outer detail, and shorter exposures to maintain the inner core. After calibration the 2 masters were integrated using the HDRcomposition function in PixInsight.

This target was imaged from the Johannesburg light polluted suburbs, with no light pollution filter. I spent 2 nights on this to acquire more data so that I can keep ISO lower.


Sky plot

Sky plot


M42 and the Running Man,