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Contains:  NGC 1999, 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 & 43, 


            Joachim Ong
Messier 42 & 43

Messier 42 & 43

Technical card

Resolution: 4030x2609

Dates:Dec. 4, 2013

Frames: 113x30"

Integration: 0.9 hours

Avg. Moon age: 1.71 days

Avg. Moon phase: 3.26% job: 140512

RA center: 83.870 degrees

DEC center: -5.396 degrees

Pixel scale: 3.181 arcsec/pixel

Orientation: -58.161 degrees

Field radius: 2.120 degrees


Orion's Sword - Orion and Running Man Nebulae (M42 and M43)

The hunter Orion carries a sword with him as he fights the bull Taurus. Two of the three stars of the sword are actually nebulae.

Location: Koh Samet, Thailand
Date: 4/12/13
Camera: Modified Canon 450D
Telescope: William Optic ZenithSatr 70ED
Mount: Celestron CG-5GT

Total exposure: 56.5 min
Subs: 113*30s (@ ISO800)
Focal length: 344mm @ f/4.9 (WO x0.8 reducer)
Filters: Celestron UHC/LPR

Notes: Low transparency due to haze



Joachim Ong
License: None (All rights reserved)

Sky plot

Sky plot


Messier 42 & 43, 


            Joachim Ong