Hello, there is no need to set the constellation, the constellation is synchronized with the birthday, and the birthday of the solar calendar shall prevail. As long as the correct birthday is set in mobile QQ, the correct constellation will be displayed only if the Gregorian calendar birthday is set.
If you don't know the birthday of the solar calendar, you can look it up in the mobile phone calendar. Nowadays, many mobile phone calendars display the solar calendar and the lunar calendar. Find the date of birth of the lunar calendar and the birthday of the solar calendar.