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Keyword: llorionis

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  • Astronomy Picture of the Day -- L Ori and the Orion Nebula

    02/02/2013 9:25:36 PM PST · by SunkenCiv · 25 replies
    NASA ^ | February 03, 2013 | (see photo credit)
    Explanation: This esthetic 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, arcing, graceful structure just above and left of center is LL Ori's cosmic bow shock, measuring about half...