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Contains:  Great Nebula in Orion, M 42, M 43, NGC 1973, NGC 1975, NGC 1976, NGC 1977, NGC 1982, The star 42Ori, The star 45Ori, The star θ1Ori, The star θ2Ori
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M42 core stars revealed and Running Man nebula, 


M42 core stars revealed and Running Man nebula
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M42 core stars revealed and Running Man nebula

Technical card

Dates:Nov. 21, 2017

10x35" ISO400
10x360" ISO800 25C

Integration: 1.1 hours

Avg. Moon age: 2.71 days

Avg. Moon phase: 8.06%

Bortle Dark-Sky Scale: 4.00

Temperature: 15.00

Basic astrometry details job: 1837221

RA center: 5h 35' 9"

DEC center: -5° 7' 30"

Pixel scale: 0.730 arcsec/pixel

Orientation: 193.862 degrees

Field radius: 0.570 degrees

Resolution: 3378x4504

Locations: Mobile Observatory, Mt Dandenong, Victoria, Australia

Data source: Traveller


I was trying for a realistic blend of a core exposure and a regular exposure of M42 when I was surprised at the additional structural components and color surrounding the trapezium. The core was shot at 400iso at 35sec and the regula Orion Nebula exposure of 800iso at 360 sec. I used an Optolong LP Pro filter to cut sky glow and got realistic color right away. I lose only 1F stop of light using this great filter.



License: None (All rights reserved)

Sky plot

Sky plot


M42 core stars revealed and Running Man nebula, 



In these public groups

The OSC Club (One Shot Camera)