How to calculate the constellation, according to the new calendar or the lunar calendar?

Constellations are calculated according to the solar calendar (new calendar). Constellation originated in Babylon, one of the four ancient civilizations. At that time, they divided the sky into many areas and called these areas "constellations". But westerners usually say that birthdays are based on the solar calendar (the new calendar), so constellations are calculated according to the solar calendar.

Babylonians made a long-term prediction of these constellations, determined the ecliptic through observation, and divided it into 12 equal parts, which became the "zodiac". These zodiac signs are named after the 12 constellation respectively. Starting from the vernal equinox, counterclockwise is Aries (Aries), Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius (Sagittarius), Capricorn, Aquarius (Aquarius) and Pisces. Your horoscope: The time when you were born is where the sun is when it passes through the zodiac, and that is your personal horoscope.