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Дата изменения: Wed Mar 26 13:07:57 2014
Дата индексирования: Sun Apr 10 13:03:22 2016
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M78 and Reflecting Dust Clouds
Astronomy Picture of the Day
    


M78 and Reflecting Dust Clouds
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M78 and Reflecting Dust Clouds
Credit & Copyright: Ian Sharp
Explanation: An eerie blue glow and ominous columns of dark dust highlight M78 and other bright reflection nebula in the constellation of Orion. The dark filamentary dust not only absorbs light, but also reflects the light of several bright blue stars that formed recently in the nebula. Of the two reflection nebulas pictured above, the more famous nebula is M78, in the image center, while NGC 2071 can be seen to its lower left. The same type of scattering that colors the daytime sky further enhances the blue color. M78 is about five light-years across and visible through a small telescope. M78 appears above only as it was 1600 years ago, however, because that is how long it takes light to go from there to here. M78 belongs to the larger Orion Molecular Cloud Complex that contains the Great Nebula in Orion and the Horsehead Nebula.

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Based on Astronomy Picture Of the Day

Publications with keywords: reflection nebula - dust
Publications with words: reflection nebula - dust
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