《汉书·志·天文志》
汉元年十月，五星聚会于束井宿，以历法推算它，其它四星应跟从岁星。
汉元年十月，五星聚于东井，以历推之，从岁星也。
In October of the first year of the Han dynasty, the five planets gathered in the Suxing constellation. According to an astronomical calculation, the other four planets would follow the planet of the year.