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M42  & 43 Mairan's - Great Nebula of Orion 

The Orion Nebula also known as Messier 42 or NGC 1976 is a diffuse nebula. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344 ± 20 light years. The M42 nebula is estimated to be 24 light years across in the constellation of Orion.

m42

Location / Date

Mauna Keratea Obs - 31/10/2010

Telescope

GSO RC10" Ritchey Cretien 2000mm f8

Mount

Sky Watcher EQ6 Pro

Camera

QHY9 KAF 8300 mono CCD, Temp -30 C

Filters / Exposures

Lum 12x150 sec bin 1x, RGB 10x120 sec bin 2x

Total Exposure Time

1,5 ~ hour

Software

Deep Sky Stacker, Nebulosity 2, PixInsight, Photoshop CS5, Starry Night, EQmod

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