Horsehead Nebula Magnet

The Horsehead Nebula (also known as Barnard 33) is a small dark nebula in the constellation Orion.

$2.00

ID: hnm

Description

The Horsehead Nebula (also known as Barnard 33) is a small dark nebula in the constellation Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion’s Belt, and is part of the much larger Orion molecular cloud complex.

The nebula was first recorded in 1888 by Scottish astronomer Williamina Fleming on a photographic plate taken at the Harvard College Observatory. Color images reveal a deep-red color that originates from ionized hydrogen gas (Hα) predominantly behind the nebula and caused by the nearby bright star Sigma Orionis. Magnetic fields channel the gases, leaving the nebula into streams, shown as foreground streaks against the background glow. A glowing strip of hydrogen gas marks the edge of the enormous cloud, and the densities of nearby stars are noticeably different on either side.

 

Additional information

Weight .5 oz
Dimensions 3 × 4 in

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