How to calculate birthdays through the sun and moon constellations?

Use the astrolabe to push. You search the astrolabe on Baidu, and then look for the corresponding moon sign according to the time of the sun sign, such as Sun Pisces and Moon Leo, and then look at the moon in Leo from February 2/kloc-0 to March 20. Because the moon changes a constellation every two and a half days, it is not easy to determine the specific day, but you can probably judge the day of the accident.