The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated south[b] of Orion's Belt. 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 and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. Older texts frequently referred to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula.
The Orion Nebula is one of the most scrutinized and photographed objects in the night sky, and is among the most intensely studied celestial features. The nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed protoplanetary disks, brown dwarfs, intense and turbulent motions of the gas, and the photo-ionizing effects of massive nearby stars in the nebula. There are also supersonic "bullets" of gas piercing the dense hydrogen clouds of the Orion Nebula.
Telescope: Skywatcher ED80
Mount: HEQ5 Pro
Camera: QHY8
Filter: Baader Ha 7nm
Guidescope: Skywatcher 70/500mm
Guide with LVI SmartGuider
Exp. Time: 115 minutes (bin 2x2) in Ha
- 5*20sec, 5*1min, 3*3min, 4*15min, 2*20min
Capture: Nebulosity 2.2.5
Stack: Deep Sky Stacker
Processing: Photoshop CS3
M42 - Orion Nebula Wiki
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