How to calculate the date of 12 constellation?

Constellation must be based on the solar calendar date, because the constellation theory comes from western countries, and the lunar calendar is one of the traditional cultures of China, and the solar calendar date also comes from western countries, so the constellation must be calculated according to the solar calendar.

The dates of the twelve constellations are as follows:

Aries: March 21-April 20;

Taurus: April 21-May 20;

Gemini: May 21-June 21;

Cancer: June 22-July 22;

Leo: July 23rd-August 22nd;

Virgo: August 23rd-September 22nd;

Libra: September 23rd-65438+1October 22nd;

Scorpio: 65438+1October 23rd-165438+1October 2nd1;

Sagittarius:165438+1October 22nd-65438+February 2nd1;

Capricorn: 65438+February 22nd -65438+ 10/9;

Aquarius: 65438+1October 20th-February18;

Pisces: February19-March 20.

origin

Western constellations originated in Babylon, one of the four ancient civilizations. It is said that the so-called Zodiac 12 constellation has more than 20 constellation names, and Mesopotamia was born about 5,000 years ago.

Since then, the Babylonians have continued to divide the sky into many regions and put forward new constellations. Around 1000 BC, 30 constellations have been proposed. Ancient Greek astronomers supplemented and developed the Babylonian constellation and compiled the ancient Greek constellation table.

In the 2nd century A.D., Ptolemy, an ancient Greek astronomer, synthesized the astronomical achievements at that time and sorted out 48 constellations. Connect the main bright stars in the constellation with imaginary lines, imagine them as images of animals or characters, and give them appropriate names in combination with fairy tales. This is the origin of the constellation name.