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Its Bayer designation is α Orionis, Latinised to Alpha Orionis and abbreviated Alpha Ori or α Ori. [ 19 ] With a radius between 640 and 764 times that of the Sun, [ 14 ] [ 11 ] if it were at the center of our Solar System , its surface would lie beyond the asteroid belt and it would engulf the orbits of Mercury , Venus , Earth , and Mars .
Betelgeuse and Bellatrix are south-east and south-west of the formation, forever cast as Alpha and Gamma by Bayer, they are near the top of Orion and in myth represent the hunter's shoulders. Sharpless 264 , also known as the Lambda Orionis Ring , is a molecular cloud and H II region , which can be seen in the northern region of the Orion ...
Star system ← → ← → Median ... Betelgeuse (Alpha Orionis) 408 – 548 +90 −49: 1: M1–M2 Ia–ab +0.50: The closest red supergiant star and one of the ...
Bellatrix is the third-brightest star in the constellation of Orion, positioned 5° west of the red supergiant Betelgeuse (Alpha Orionis). It has the Bayer designation γ Orionis, which is Latinized to Gamma Orionis. With a slightly variable magnitude of around 1.6, it is typically the 25th-brightest star in the night sky.
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Betelgeuse is a semiregular variable star located approximately 640 light-years from the Earth. With an apparent magnitude ranging between 0.3 and 1.2, it is the ninth brightest star in the night sky.
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Information for another 115 stars, known as "tabulated stars", is also available to the navigator. [1] This list provides information on the name, approximate position in the celestial sphere, and apparent magnitude of the 58 selected stars in tabular form and by star charts. These stars are typically used in two ways by the navigator.