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Дата изменения: Mon Jan 7 15:11:22 2002
Дата индексирования: Tue Dec 25 15:00:42 2007
Кодировка:

Поисковые слова: trifid nebula
The Mysterious Cone <b style="color:black;background-color:#66ffff">Nebula</b>
Astronomy Picture of the Day
    


The Mysterious Cone Nebula
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The Mysterious Cone Nebula
Credit: Robert Gendler
Explanation: Sometimes the simplest shapes are the hardest to explain. For example, the origin of the mysterious cone-shaped region seen on the far left remains a mystery. The interstellar formation, dubbed the Cone Nebula, is located about 2700 light years away. Other features in the image include red emission from diffuse interstellar hydrogen, wispy filaments of dark dust, and bright star S Monocerotis, visible on the far right. Blue reflection nebulae surround the brighter stars. The dark Cone Nebula region clearly contains much dust which blocks light from the emission nebula and open cluster NGC 2264 behind it. One hypothesis holds that the Cone Nebula is formed by wind particles from an energetic source blowing past the Bok Globule at the head of the cone.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: NGC 2264 - Cone nebula
Publications with words: NGC 2264 - Cone nebula
See also:
All publications on this topic >>