Give an example to illustrate what is a "pointing back star"?

When the year, month and day of the lunar birthday are added and divided by the year number of the year, the sum of the first five digits of the data is singular, which means that the astrolabe points to the later star.

According to the ancient book "the meaning of returning to Tibet", in order to solve the bad luck of the stars and get good luck, it is necessary to carve Yang Ying array and pigeon candle array on the purple ice silver seal symbol.