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M42

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 1,270±76 light years[2] 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. Yet older, astrological texts refer to it as Ensis (Latin for "sword"), which was also the name given to the star Eta Orionis, which can be seen close to the nebula from Earth.[5]
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.[6] 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 through the dense hydrogen clouds of the Orion Nebula. Each bullet is ten times the diameter of Pluto's orbit and are tipped with iron atoms glowing bright blue. They were probably formed one thousand years ago from an unknown violent event.
From wikipedia

M42_20101209JTt.jpg
Bagged By: Julian Tworek
Details: 17 images at 2min and 21 images at 30sec darks flats bias used 9\12\2010
Instrument: Sky Watcher Mak-Newt 190 canon 40D ISO 800 PHD guiding with QHY5 EQ6 Pro mount
Special Notes: Taken in Light Polluted Sidcup
M42_JT03t.jpg
Bagged By: Julian Tworek
Instrument: EQ6Pro LX200 OTS 10" F6.3 Modified Canon 20D
Special Notes: Taken in Light Polluted Sidcup




m42JT02.jpg
Bagged by: Julian Tworek

m42_bt03.jpg
For more information on light pollution, full resolution versions of these images and details of the filters used please visit our light pollution page.
Bagged by: Brian Thompson.
Details: Single Frame DSLR on 120mm Refractor with and without light pollution filter


SPECTRA_M42.JPG
Notice nearly all the light is from OIII and Ha, this explains why light pollution filters, that only allow light from these frequencies to pass through work well on M42. For more information on obtaining spectra visit our spectroscopy pages
Bagged by: Simon Dawes.
Details: Single Frame DSLR on F9 120mm ED Refractor with Star Analyser

m42_aw01.jpg

Bagged by: Andrew Wilson
Instrument: LX200 8", MX916

m42_jt01.jpg

Bagged by: Julian Tworek
Date: 1 March 2003
Instrument: LX200 10", MX716 CCD, F3.3
Details: Red 6 x15 sec, Green 5x15 sec, Blue 5x15 sec, Luminance 5x15 secs - all averaged together.

m42_kr01.jpg

Bagged by: Keith Rickard
Method: Meade LX10 8", Olympus OM10, F6, Kodak Elitechrome ISO200 film, 15 minutes.

m42_mc01.jpg

Bagged by: Martin Crow
Method: Celestron 9.25 GPS @ f3.3 and a MX 916 camera. 6 x 120sec exp stacked, False colour.

m42_sd01.jpg

Bagged by: Simon Dawes
Date: 8 February 2006
Method: Vixen 12" Newtonian, Artemis CCD


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