Horse's Head nebula - Hutchinson encyclopedia article about Horse's Head nebula Printer Friendly
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Horsehead Nebula
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Horsehead Nebula

Nebula in the constellation of Orion, near the star Zeta Orionis, and about 1,600 light years from the Sun. Part of the nebula consists of a dark cloud resembling a horse's head silhouetted against the glow of an HII region (a region of hot ionized hydrogen).



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