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Home > THE LUNAR EXPLORER ARCHIVES > The Universe in Super Definition
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Orion's Nebula an LL Orionis (the "Bow-Shock" effect)
This close-up of cosmic clouds and stellar winds features LL Orionis interacting with the Orion Nebula flow. Adrift in Orion's stellar nursery and still in its formative years, variable star LL Orionis produces a wind more energetic than the wind from our own middle-aged Sun.
As the fast stellar wind runs into slow moving gas, a shock front is formed, analogous to the bow wave of a boat moving through water or a plane traveling at supersonic speed.
The small and graceful structure just above and left of center, is LL Ori's "Cosmic Bow Shock", measuring about 1/2 a LY across.
The slower gas is flowing away from the Orion Nebula's hot central star cluster, the Trapezium, located off the upper left corner of the picture.
In 3D, LL Ori's wrap-around shock front is shaped like a bowl that appears brightest when viewed along the bottom edge.
The beautiful picture is part of a large mosaic view of the complex stellar nursery in Orion, filled with a myriad of fluid shapes associated with star formation.
LonelyPlanet-PIA09118.jpg M 17.jpg M 42 - HST-1.jpg M 42-PIA08653.jpg M 42-PIA08654-ed.jpg
Informazioni File
Nome file:M 42 - HST-1.jpg
Nome Album:The Universe in Super Definition
Valutazione (8 voti): (Dettagli)
Keywords:Hubble Images
Copyright:NASA, ESA, and The Hubble Heritage Team
Dimensione file:307 KB
Aggiunto il:Gen 20, 2006
Dimensioni:1966 x 1462 pixels
Visto:60 volte
URL:http://www.lunexit.it/gallery/displayimage.php?pos=-9349
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