What is the constellation always calculated based on?

Constellations are calculated according to the solar calendar, which is also called the solar calendar. If your birthday is in the lunar calendar, you should convert it. Now the Gregorian calendar widely used in the world is the Gregorian calendar. First, convert the lunar birthday into the solar calendar. Because of foreign introduction, according to the solar calendar, the calendar year of the solar calendar is about equal to the tropic of cancer, one year 12 months.

Constellation originated in Babylon, one of the four ancient civilizations. Westerners usually say that birthdays are based on the solar calendar, so the constellations are calculated according to the solar calendar. The month and date of the solar calendar are very consistent with the position of the sun on the ecliptic. According to the date of the solar calendar, we can clearly see the changes of cold and warm seasons in a year.

Date division of constellations:

Aries: March 21~ April 20

Taurus: April 2 1 to May 2 1.

Gemini: May 22nd to June 2nd1

Cancer: June 22nd to July 22nd.

Leo: July 23rd to August 22nd.

Virgo: August 23rd to September 23rd.

Libra: September 24th ~ 65438+1October 23rd.

Scorpio: 65438+1October 24th ~165438+1October 22nd.

Sagittarius:165438+1October 23rd to 65438+February 2nd1

Capricorn: 65438+February 22nd ~ 65438+1October 20th.

Aquarius: 65438+1October 21~ February 19

Pisces: February 20th to March 20th.