What are the twelve constellations?

The twelve constellations are Aries, Taurus, Gemini, Cancer and Leo.

1, Aries Aries is the first house of the zodiac, located in the east of Pisces and the west of Taurus. The date of birth is 2 1 year from March to April 20th. Aries is quite like a child, straightforward, enthusiastic, impulsive and self-centered.

2. Taurus Taurus is the second house of the zodiac, located in the east of Aries and the west of Gemini. Its date is from April 2 1 day to May 20 in the solar calendar. Taurus people are gentle and sincere, and they are more suitable to choose sunshine avenue to live a stable life than to take risks.

3. Gemini Gemini is one of the zodiac signs, and its date of birth is from May +0, 265438 to June +0, 265438, representing impetuousness and communication. Gemini people tend to like new things. They are smart, but they are often not very specific.

4. Cancer. Cancer is the first constellation in summer and the darkest of the twelve constellations, symbolizing the inner potential and soul of human beings. Its date of birth is from June 22nd to July 22nd. Cancer is located to the east of Gemini and to the west of Leo.

5.leo. Leo is the fifth house of the zodiac, and its date of birth is from July 23rd to August 3rd1day. Leo people are more loyal, they are very confident, but they are reckless.

The origin of the zodiac

In astronomy, the earth's orbit around the sun is called the ecliptic. The width of the ecliptic is 18 degrees, and its orbit around the sun is 360 degrees. The ecliptic plane includes the orbits and constellations of all planets. There is a constellation every 30 degrees, a total of twelve constellations, called "Zodiac".

"Zodiac" is an Arabic astrological term, which originated in Babylon. Babylonians observed these constellations for a long time, determined the ecliptic through observation, and divided the ecliptic into 12 equal parts, each equal part was 30 degrees, which was called 1 segment. The sun travels around the ecliptic in 12 months/cycle, so it travels on the ecliptic every month 1 segment.