Which constellation mainly depends on _ which constellation mainly depends on?

What birthday is the constellation based on?

Constellations are divided by birthdays in the solar calendar.

Constellations are based on the Gregorian calendar, also known as the Gregorian calendar. It's an international calendar. There is no such thing as a lunar calendar abroad. In astronomy, the solar calendar refers to a calendar arranged mainly according to the annual movement of the sun. Because the constellation originated in Babylon, one of the four ancient civilizations, the constellation is calculated according to the solar calendar.

The solar calendar, also known as the solar calendar, is a calendar based on the movement cycle of the earth around the sun. The Gregorian calendar year is approximately equal to the tropic year, one year 12 months. This "month" has nothing to do with the first lunar month. 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. But every month, you can't see the new moon, the new moon, the new moon.

The origin of the twelve constellations:

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.

The final result was that the Babylonians named the twelve constellations respectively. Starting from the vernal equinox, counterclockwise is Aries (Aries), Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius (Sagittarius), Capricorn, Aquarius (Aquarius) and Pisces.

The above contents are for reference only.