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Orion, Southern constellation S Taurus and Gemini, clearly visible in our latitudes in winter. It is shaped like a huge quadrilateral whose vertices are located very bright stars. Three are the best known: North East Betelgeuse, depicting the left shoulder of the giant Orion; Northwest Bellatrix, the right shoulder of the giant; South West Rigel, very bright, depicting the left foot of the giant.
The right foot is not visible and hidden imagines behind the constellation of the Wolf. Inside the district, there are three stars (Alnitak, Alnilam, and Mintaka) aligned almost horizontally, which make up the belt of Orion and are also commonly called the Three Kings or stick of Jacob.
Near the second of these stars, the θ is the Orion Nebula, a cloud of gas and dust in the interstellar part brilliant, dark side, also referred to by the initials 1976 NGC (New General Catalog). It is perhaps the only nebula known in antiquity because, under favorable conditions, it is also visible to the naked eye. Orion is located next to the river Eridanus with his two hunting dogs Canis Major and Canis Minor, fighting Taurus.
Also, another of his prey, the hare, is near. The constellation of Orion is one of the easiest to recognize and observe and contains a large number of bright stars, to the point that it is clearly visible without difficulty, in the appropriate evening, even from a big city center. The constellation of Orion is very rich in bright stars and interesting objects. The major stars of Orion are very similar in age and physical characteristics, suggesting that they had a common origin (Betelgeuse is an exception to this rule). In fact, the entire constellation of Orion is the closest star-forming region and was sometimes considered entirely OB association, ie a group of young stars and blue, very bright and very hot. The best period for your observation in the evening sky from November to May; being exactly at the turn of the celestial equator, its visibility is optimal for all peoples of the Earth.
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