Does the astrolabe use the lunar birthday or the solar birthday?

If astrolabes are popular among foreigners to discuss constellations, it is the Gregorian calendar used;

If it is related to the astrological divination in ancient China, the exploration of the astrolabe Zhouyi, the astrological divination of the five elements of the ecliptic and so on, it is the birthday of the lunar calendar-sometimes it involves the date of birth. Because when these theories and theories were invented and perfected, the chronological method of Gregorian calendar was unknown.

Different! See where the thing under discussion actually comes from. This judgment is generally not wrong.