《宋书·志·卷二十六》
元嘉二十年二月二十四日乙未，有像桃子一样大的流星，出天津入紫宫，不久有三五成群的小流星相续，又有一大流星从紫宫出而入北斗魁，不久又有一大流星出而横贯索中，经天市垣，所有的流星都向北运行，至天亮时已数不胜数。
元嘉二十年二月二十四日乙未，有流星大如桃，出天津，入紫宫；须臾，有细流星或五或三相续，又有一大流星从紫宫出，入北斗魁；须臾，又一大流星出，贯索中，经天市垣，诸流星并向北行，至晓不可称数。
On February 24, the 20th year of Yuan Jia, there was a meteor the size of a peach. It left Tianjin and entered the Zi Gong. Soon after, there were three or five groups of small meteors. Then a large meteor left the Zi Gong and entered the Big Dipper. Soon after, another large meteor came out and crossed the rope in the middle. It traveled through the Heavenly City Yuan. All the meteors traveled north. By the time it was light, they were countless.