Rigil

Rigil is a star located in the constellation Orion. Its name is derived from the Arabic "rijl jauzah," meaning "the foot of the central one." Rigil is a blue supergiant and one of the brightest stars in the night sky, ranking as the sixth brightest. It is a prominent member of Orion's Belt, a prominent asterism. Rigil is located approximately 815 light-years away from Earth.

The star is known to be a spectroscopic binary, meaning it is composed of at least two stars orbiting each other, though the companion is too close to be resolved visually. Rigil's primary star is estimated to be around 17 times the mass of the Sun and about 123,000 times as luminous. Its surface temperature is approximately 12,000 Kelvin.

As a supergiant, Rigil is in a later stage of its stellar evolution and is expected to eventually end its life in a supernova explosion. Its immense luminosity and relatively close proximity to Earth make it a significant object of study for astronomers interested in the lifecycle of massive stars. Rigil's visibility makes it a familiar sight for stargazers and a navigational aid in the night sky.