Horsehead and Flame Nebulae
The Horsehead Nebula, also known as Barnard 33, is a 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 to the much larger Orion Molecular Cloud Complex.
The Nebula was first recorded in 1888 by Scottish astronomer William Fleming on a photographic plate taken at the Harvard College Observatory. The Horsead Nebula is approximately 1500 light years from Earth. It is one of the most identifiable nebulae because of its resemblance to a horse's head.
Due to its recognizable shape the Horsehead Nebula is one of the most famous celestial objects.
The Flame Nebula, designated as NGC 2024 and SH2-277, is an emission nebula in the constellation of Orion. It's about 900 to 1,500 light-years away
The bright star Alnitak, the easternmost star in the Belt of Orion, shines energetic ultraviolet light into the Flame and this knocks electron away from the great clouds of hydrogen gas that reside there. Much of the glow results when the electron and ionized hydrogen recombine
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