Are the twelve constellations calculated by lunar calendar or solar calendar? When were the twelve constellations worked out?

The twelve constellations are calculated according to the solar calendar. The saying of the twelve constellations comes from abroad and belongs to western culture. Each constellation is synonymous with a place representing the universe. Western countries use the solar calendar (Gregorian calendar) to calculate time, so the twelve constellations are calculated according to the Gregorian calendar (Gregorian calendar). Babylonians made a long-term prediction of the constellations in the sky, determined the ecliptic through observation, and divided it into 12 equal parts, which became the "zodiac".

Twelve constellations time

Zodiac time: Aries March 21~ April19; Taurus from April 20th to May 20th; Gemini may 2 1 to June 20; Cancer June 21~ July 21; Lions from July 22 to August 22; Virgo from August 23 to September 22; Libra September 23rd ~ 65438+1October 22nd; Scorpio 65438+1October 23rd ~165438+1October 2nd1; Sagittarius165438+1October 22nd to 65438+February 2nd1; Capricorn 65438+February 22 ~ 65438+ 10/9; Aquarius 65438+1October 20th to February18; Pisces February19 ~ March 20.

The origin of 12 constellation

The origin of the constellation is said to be Babylon, one of the four ancient civilizations with China. At that time, they divided the sky into different regions and called them "constellations", which is the origin of constellations. Then the Babylonians observed these "constellations" for a long time. Through constant observation, they set the ecliptic and finally divided it into twelve parts, so the "zodiac" appeared.

Distinguish between lunar calendar and solar calendar

The solar calendar is calculated by the sun and the lunar calendar by the moon. The lunar calendar is what we call the national calendar and the lunar calendar. It has been circulating in China for hundreds of years. The solar calendar comes from abroad, commonly known as the Gregorian calendar. The solar calendar is a calendar designed according to the earth's revolution around the sun, which originated in the west. The return year of revolution is 3 1897 days, so there will be one less day every four years.