Constellation problem

As far as I know, the zodiac 12 is usually used for "testing", which is an important indicator of astronomical observation. It is related to the twenty-four solar terms. Aries starts from the vernal equinox (the exact time is the vernal equinox), Taurus starts from Grain Rain in April to Xiaoman in May, Gemini starts from Xiaoman to the summer solstice in June, and so on. There seems to be no full-term score. In my opinion, to calculate your birthday horoscope, you should see if your birth time falls between the corresponding two months of the year. If you happen to be born on the vernal equinox or summer solstice, you can compare your birth time with the exact time of the vernal equinox and summer solstice. At this moment, the old "calendar card" and "yellow calendar card" can be used. ) It belongs to the constellation after Qi. Otherwise, it is the constellation before the gas.

(Throw a brick to attract jade, everyone studies)