《史记·八书·天官书》
七月份，岁星与东井、舆鬼二宿一起，早晨出现于东方，名为大音。
以七月与东井、舆鬼晨出，曰大音。
In the seventh month, the planet Jupiter appears in the eastern sky in the morning with the Dongjing and Yugui constellations, which is called Dayin.