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Contains:  M 43, NGC 1982, NGC 1977, NGC 1980, M 42, Great Nebula in Orion, NGC 1976, NGC 1975, NGC 1981, NGC 1973, The star 45Ori, The star ιOri, The star θ2Ori, The star θ1Ori, The star 42Ori
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Messier 42 - captured by ROSETTA 260 million km away from earth!, 





    
        

            Andreas Dietz
Messier 42 - captured by ROSETTA 260 million km away from earth!

Messier 42 - captured by ROSETTA 260 million km away from earth!

Technical card

Resolution: 512x512

Dates:Nov. 27, 2006

Frames: 40x30"

Integration: 0.3 hours

Avg. Moon age: 6.57 days

Avg. Moon phase: 41.38%

Bortle Dark-Sky Scale: 1.00

Astrometry.net job: 2117781

RA center: 83.918 degrees

DEC center: -5.218 degrees

Pixel scale: 17.601 arcsec/pixel

Orientation: 71.024 degrees

Field radius: 1.770 degrees

Data source: Professional, scientific grade data

Description

Must be fun to work at ESA and to wait for arrival of the space probe at the target comet 67P: In the previously fully released mission archive of the ROSETTA project I stumbled upon a few long-time exposures of Messier 42 taken with the NAVCAM camera module. They were taken three months before the Mars Swing-By in Feb 2007. At an estimated speed of 18.000km/h the distance to earth must have been 260 million kilometers! You know what that means? No natural or artificial light pollution at all! Bortle scale << 1!

In the meantime it has become a reflex for me to stack such an image set. So I couldn't resist to download them and to process them. The frames had been captured at full aperture of 70mm without attenuation filter. Unfortunately I couldn't find any valid dark frames, so I had to deal with a lot of hot pixels,...

Image credit: EUROPEAN SPACE AGENCY-ESAC (Copyright)

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Author

dakloifarwa
Andreas Dietz
License: Attribution-ShareAlike Creative Commons
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Messier 42 - captured by ROSETTA 260 million km away from earth!, 





    
        

            Andreas Dietz