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The Horsehead Nebula in Orion

The Horsehead Nebula in Orion   - orion, space, star, stars, universe
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Wallpaper Description:
From APOD: "Explanation: One of the most identifiable nebulae in the sky, the Horsehead Nebula in Orion, is part of a large, dark, molecular cloud. Also known as Barnard 33, the unusual shape was first discovered on a photographic plate in the late 1800s. The red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. A blue reflection nebula dubbed NGC 2023 surrounds the bright star at the lower left. The darkness of the Horsehead is caused mostly by thick dust, although the lower part of the Horsehead's neck casts a shadow to the left. Streams of gas leaving the nebula are funneled by a strong magnetic field. Bright spots in the Horsehead Nebula's base are young stars just in the process of forming. Light takes about 1500 years to reach us from the Horsehead Nebula. The above image was taken earlier this month with a 0.6-meter telescope at the Mt. Lemmon SkyCenter in Arizona, USA. "

Wallpaper Comments (1)

63unicornioPosted by 63unicornio on 12/07/08 at 12:38 PM
Ustedes saben muy bien por qué se llamaba. La imagen merece su nombre.

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Wallpaper Statistics

Total Downloads: 277
Times Favorited: 3
Uploaded By: LNB613
Date Uploaded: December 04, 2008
Filename: horsehead_caelum.jpg
Original Resolution: 900x600
File Size: 60.81KB
Category: Stars

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