Constellations are determined by the date of the solar calendar. Lunar calendar1July 2, 9991day, the solar calendar date is August 3 1 day, and the constellation of that day is Virgo.
Lunar calendar:1July 2, 9991day
Main branch: Renshen Yi Mao, a bazaar.
Gregorian calendar: 1999 August 3 1 Tuesday Virgo
Source: Hua Wang.