°A bright-red supergiant intrinsic variable star, the second brightest star in the constellationOrion; Alpha (?) Orionis. It is the tenth brightest star in the nighttime, and one of the largest stars known.
°A bright-red supergiant intrinsic variable star, the second brightest star in the constellationOrion; Alpha (?) Orionis. It is the tenth brightest star in the nighttime, and one of the largest stars known.