What is the meaning of the constellation _ Royal Gege corresponding to Royal Gege?

How do the imperial palaces, princesses and ministers on the earth correspond to the constellations in the sky?

Records of the Historian Tianguan Ji closely links the constellations in the sky with the emperors, concubines and princes on earth, saying: "The palace is a star, and the wise always live in Taiyi. The next three stars are still genera. The last four stars, the last big star is the princess. Yu Sanxing is a member of the harem. Twelve stars in the ring, princes. "