Coalsack Nebula, also known as Coalsack, Southern Coalsack, il Canopo fosco, The Dark Canopus, Macula Magellani, Magellanic Spot, Yutu, Caldwell 99, C99 and Black Magellanic Cloud, is a Dark Nebula/Absorption Nebula located in The Crux Constellation. Coalsack Nebula is located 590 Light Years from Earth. A Dark Nebula or Absorption Nebula is an interstellar cloud that is extremely dense, to the point that it obscures the light from objects behind it, such as background stars and emission or reflection nebulae. Coalsack Nebula has a radius pf 30 to 35 Light Years. The Coalsack Nebula was discovered in 1499 AD by Spanish Explorer Vicente Yáñez Pinzón. Italian Explorer Amerigo Vespucci, who The Americas are named after, name it il Canopo fosco or The Dark Canopus. Coalsack Nebula can be seen in space with the naked eye, where it will be seen as a dark splat hindering the light of stars in The Milky Way. In Ancient Inca, Incan Astronomers knew this Nebula as Yutu, or Tinamou, a partridge -like southern bird.
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