《宋书·志·卷二十三》
考查占书可知 胃宿属兖州分野，参宿与西方白虎主宰军事，太微垣代表天子廷，执法星代表执政大臣，彗星预示战事，乃除旧布新之天象。 
按占， 胃，兗州之分，参白虎主兵，太微天子廷，执法为执政，孛彗为兵，除旧布新之象。 
According to the book of divination, Weisuo belongs to the field of Yanzhou, and Sansu and Western White Tiger preside over military affairs. Taimicai represents the emperor's court, and the law enforcement star represents the ruling minister. The comet foreshadows war and is a celestial phenomenon of removing the old and establishing the new.