What does Rowen Chen Fu mean?

Note: "Dragon tail, tail star also." The meeting of the sun and the moon is called Chen, and the sun is at the tail, so the tail star disappears.

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Zuo Zhuan (five years after Zuo Zhuan's reign): "As a nursery rhyme goes,' the morning of three days is the morning after the dragon's tail'" and "Rizhilu" Gu: Everyone knows astronomy for more than three generations. "July filariasis", the farmer's words also. "There are three stars at home", and the language of women is also. "Leaves at the End of the Moon" is also a work of guarding the dead. "The dragon's tail lurks in the morning", which is also a rumor for children. Scholars of later generations, those who asked questions and were at a loss.