Chi2 Orionis (right ascension 06 03 55.18482) is a star in Orion, with an visual magnitude of 4.63 and the star serves as an anchor point that stars are classified.
Orionis Chi Orionis (Chi Ori /  Orionis /  Ori) /ka.tura/ is a B-type supergiant star in the constellation of Orion. 06 03 55.18482 It has an apparent visual magnitude of 4.63 but being quite distant, and heavily extinguished it burns with the greatest absolute visual light magnitude among stars in Orion within the near reaches of the galaxy, 0.9 of a magnitude greater than Rigel. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. 
