Various constellations

By 1922, at the first general meeting of the International Astronomical Union (), it was unanimously decided to divide the whole day into 88 constellations. More than half of these 88 constellations originated from the early civilizations of ancient Babylonians and Greeks, and the images and symbolic meanings of these constellations are closely related to the myths of ancient Greece.

The division of 88 constellations can be roughly divided into three areas: First, the famous "Zodiac Constellations", namely: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces. They are arranged along the ecliptic to form an annular area. The so-called ecliptic is the path (or trajectory) of the sun's apparent motion in the sky every year, and it is also the intersection of the earth's revolution plane around the sun and the celestial sphere (imaginary). One is the Polaris constellation north of the ecliptic, with 29 constellations. First, there are 47 constellations in the southern sky south of the ecliptic, most of which were added after17th century. They are generally named after exotic animals in the south and precious instruments and utensils invented at that time.

The stars in the constellation refer to the celestial bodies with basically the same position on the starry sky background. They are all stars. As for the stars that are constantly moving in the starry sky background, they are planets, asteroids, comets, meteors and other celestial bodies, and they do not belong to constellations.

As for the naming of stars in constellations, except some particularly bright stars have their own proprietary names, they are generally marked by the name of constellations plus a Greek letter: the stars in each constellation are arranged roughly in light and dark order, and then the Greek letters α, β, γ, δ, ζ ... match the corresponding serial numbers. For example, Sirius is the brightest star in Canis Canis, called Alpha Canis; Betelgeuse is the third brightest star in Orion, and it is called Orion γ.

The division of ancient starry sky in China is a system of "three walls, four images and twenty-eight lodges";

Three Gorges: Ziwei Garden, Taiwei Garden and Tianshi Garden: there are black dragons in the east, suzaku in the south, white tigers in the west and black dragons in the north.

Twenty-eight lodgings: horn, sound, rafter, room, heart, tail and dustpan; Fight, cow, female, virtual, dangerous, house, wall; Kui, Lou, Stomach, Chang, Bi, Gou and Shen; Well, ghosts, willows, stars, Zhang, wings, birds.

The ancient Greeks gave Mercury two names: Apollo when it first appeared in the morning and Hermes when it flashed in the night sky. However, ancient Greek astronomers knew that these two names actually refer to the same star. Mercury Venus (Greek: Aphrodite; Babylonian: Ishtar is the goddess of beauty and love. Perhaps it was named like this because it was the brightest planet in the known world for ancient people. People have known about Venus since prehistoric times. Besides the sun and the moon, it is the brightest. Like Mercury, it is usually considered to be composed of two independent stars: the morning star is called Eosphorus and the evening star is called Hesperus, which Greek astronomers know better. Venus Earth is the only name that doesn't come from Greek or Roman mythology. The word earth comes from old English and Germanic. Of course, there are many other languages. In Roman mythology, the goddess of the earth is called Tellus-fertile land (Greek: Gaia, mother of the earth), and Mars (Greek: Ares) is called the god of war. This may be due to its bright red color; Mars is sometimes called the "red planet". Interesting note: Before the Greeks, the ancient Romans once offered sacrifices to Martians, who were a god who seldom talked about agriculture. The aggressive Greeks regarded Mars as a symbol of war, and the name of March also came from Mars. Mars Jupiter (also known as Jupiter; The Greeks called Zeus the king of God, the ruler of Mount Olympus and the protector of Rome. He is the son of Cronus (Saturn). Jupiter in Roman mythology, Saturn is the name of Saturn. Cronus, the god of agriculture in Greek mythology, is the son of Uranus and Kaya and the father of Zeus (Jupiter). Saturn is also the root of Saturday in English. Be careful when reading the English name of Uranus, or you may be in an awkward position. Uranus should be pronounced "YOOR a nus", not "your anus" or "Urenius" (urinating on us). Uranus is the god of the universe in ancient Greek mythology and the earliest supreme god. He is the son and wife of Kaya and the father of Cronus (Saturn), Cyclops and Titan (the predecessor of Mount Olympus). In ancient Roman mythology, Neptune (Greek mythology: Poseidon) represents Poseidon, the sea god. Neptune, voted by the General Assembly of the International Astronomical Union, Pluto was downgraded to a dwarf planet, leaving only eight planets in the solar system. The idea of "nine planets" has become history. Pluto

Jupiter, the main star: Fortunately, the official career is prosperous and the official position is suitable. Venus is the main star: deep love, opposite sex, suitable for art, Mars is the main star: hard work, easy to be tortured, bloody disaster. Saturn is the main star: great responsibility, late bloomer. The main star is Uranus: the journey is ups and downs and unstable. Accident-prone. The main star is Neptune: reputation is damaged, scandal-ridden, which is not conducive to being an official. The main star is Pluto: lonely all his life, with the possibility of being isolated, rejected and abandoned. The main star is the moon: more exercise, less quiet, wandering life. Mercury ruler: Suitable for writing, writing and teaching.