What does "Wei Zi" mean in "Wei Zi's Art"?

Lagerstroemia indica is the royal star among 14 main stars, which is distributed in the zodiac with its position, forming the basis for inferring the number of barrels: 144 group of galaxies. Wei Zi turned around and said "respect" kindly, acting as an official.

Before Emperor Liu Che of the Han Dynasty, the Chinese nation was purple, and later it was yellow. But purple is still a symbol of imperial pow,

The ancients represented the emperor, because Wei Zixing was in the center of heaven.