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The '''Orion Nebula''' (also known as '''Messier 42'''), is the brightest star forming, diffuse nebula in the sky, situated south of the belt of [[Orion]]. Having an apparent magnitude of +3, the nebula can be seen by the unaided eye in moderately dark skies. It is estimated to be some 24 light years across and is some 1,344±20 light years from Earth.<ref>http://arxiv.org/abs/0902.3913</ref> The Orion Nebula itself is only part of a vastly larger star forming nebular region called the '''Orion Molecular Cloud Complex'''.
The '''Orion Nebula''' (also known as '''Messier 42'''), is the brightest star forming, diffuse nebula in the sky, situated south of the belt of [[Orion]]. Having an apparent magnitude of +3, the nebula can be seen by the unaided eye in moderately dark skies. It is estimated to be some 24 light years across and is some 1,344±20 light years from Earth.<ref>http://arxiv.org/abs/0902.3913</ref> The Orion Nebula itself is only part of a vastly larger star forming nebular region called the '''Orion Molecular Cloud Complex'''.
The Orion Nebula is the primary example of a stellar nursery where new stars are being born. Recent observations of the nebula have revealed approximately 700 stars in various stages of formation within the nebula. In addition, the Hubble has found over 150 proplys, ([[protoplanetary disk]]s) in the nebula.<ref>http://adsabs.harvard.edu/abs/1996AJ....111.1977M</ref> Such systems are considered to be the earliest stages of solar system formation. The large number located just in this one nebula is viewed as evidence that the formation of star systems is a common occurrence in the universe.
The Orion Nebula is the primary example of a stellar nursery where new stars are being born. Recent observations of the nebula have revealed approximately 700 stars in various stages of formation within the nebula. In addition, the Hubble has found over 150 proplys, ([[protoplanetary disk]]s) in the nebula.<ref>http://adsabs.harvard.edu/abs/1996AJ....111.1977M</ref> Such systems are considered to be the earliest stages of solar system formation. The large number located just in this one nebula is viewed as evidence that the formation of star systems is a common occurrence in the universe.
==References==
==References==
{{reflist}}
{{reflist}}
*[http://messier.obspm.fr/more/m042-043_more.html Additional Images of the Orion Nebula]
*[http://messier.obspm.fr/more/m042-043_more.html Additional Images of the Orion Nebula]
*[http://www.spacetelescope.org/news/html/heic0601.html Images of Orion by the ESA and Hubble]
*[http://www.spacetelescope.org/news/html/heic0601.html Images of Orion by the ESA and Hubble]
[[Category:Astronomy]]