The brightest star in Orion is beta star, with an apparent magnitude of 0. 12, ranking seventh among all bright stars in the whole day, with an absolute magnitude of -7. 1 and a surface temperature of 12000. Alpha Orion, the ninth brightest star in the whole day, Latin for Betelgeuse, with a brightness of 0.06-0.75 and a period of 5.5 years, is an irregular variable star. Every year 1 the end of February, at 8: 00 pm, the three stars of Orion are high in the southern sky, so there is a folk saying that "the three stars are due south and the Chinese New Year is coming soon".