Who are the big families in the solar system? The names of the three major ethnic groups of the sola

The center of the solar system is the sun, which orbits the center of the Milky Way every 100 million years, and although it is only a small and medium-sized star, its mass has accounted for the total mass of the entire solar system; The remaining masses include planets and their moons, planetary rings, as well as asteroids, comets, Kuiper Belt objects, outer Neptune objects, theoretical Oort clouds, interplanetary dust, gases, and particles and other interplanetary matter. The total surface area of all the celestial bodies in the entire solar system is about 1.7 billion square kilometers. The Sun uses its strong gravitational pull to tightly control all the celestial bodies in the solar system around itself, making them revolve around itself in an orderly manner.

At the same time, the Sun carries all the members of the Solar System around the center of the Milky Way.

Eight large planets have been discovered in the solar system so far. They are sometimes referred to as the "Eight Planets". In order of proximity to the Sun, the eight planets are:

Nearest Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Mercury, Venus, Earth, and Mars are also known as terrestrial planets, Jupiter and Saturn are also known as giant planets, and Uranus and Neptune are also known as perihelia. With the exception of Mercury and Venus, all other planets have moons.

Between Mars and Jupiter, there are hundreds of thousands of asteroids of various sizes and shapes, and astronomers refer to this region as the asteroid belt. In addition, there are more than 1,000 comets in the solar system, as well as countless small celestial bodies such as dust, ice masses, and debris.

The celestial bodies in the solar system are mainly composed of gases such as hydrogen, helium, and neon, ice (water, ammonia, methane), and rocks containing elements such as iron, silicon, and magnesium. Some moons of terrestrial planets, Earth, Moon, Mars, Jupiter, and asteroids are mainly composed of rocks; Jupiter and Saturn are mostly composed of hydrogen and helium, and their nuclei may be rocks or ice.

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

Solar systemEight planetsThere are three types, and it can also be said that there are three major families, which are Jupiter-like (Jupiterand Saturn), the perihelia planets (Uranus and Neptune), and terrestrial planets (Earth, Venus, Mars, etc.).Mercury

The solar system is made up of the Sun, the eight planets and their moons, asteroids, and comets.

A large family of meteoroids and interplanetary matter, among others. The sun is in the center, accounting for the total mass, and is the parent of this large family. The other celestial bodies are its sons and daughters. in gravitational attraction.

Under the action, large planets, asteroids and comets orbit the sun, and satellites orbit large and small planets.

The eight planets are, in descending order, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto was discovered in 1930.

It is also included in the ranks of large planets. But its identity has always been divided.

In this family, the closest planet to the Sun is Mercury, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Among them, only five can be seen with the naked eye, and the names of these five stars vary from country to country.

Therefore, the five elements of gold, wood, water, fire, and earth are used to name them Venus, Jupiter, Mercury, Mars, and Saturn respectively, not because there is water on Mercury and trees on Jupiter.

There are many members of the solar system family, and they have different "appearances" and "personalities", forming a big family centered on the sun.

The nine planets are the most striking members of the solar system, and in descending order from the Sun, they are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. With the exception of Mercury and Venus, the other large planets have their own moons, which vary in number.

There are many other small bodies in the large family of the solar system, including thousands of asteroids and their moons, as well as billions of comets, meteoroids, etc. Among them, asteroids are mainly distributed between the orbit of Mars and Jupiter, forming a relatively dense asteroid belt.

Most members of the solar system family revolve around the Sun in elliptical or circular orbits, but some comets have parabolic or hyperbolic orbits. Most planets rotate in the same direction as their revolutions, but there are some planets that rotate in the opposite direction, such as Venus and Pluto.

Small bodies in the solar system, such as asteroids, comets, meteoroids, and interplanetary dust particles, are only "tiny" compared to large planets. In interstellar travel, human beings must first calculate the itinerary of asteroids, comets, and dense meteoroids, so that spaceships and aircraft can avoid them and orbit them, so as not to collide with them in space and be shattered. When the comet approaches the sun, it drags a long comet tail, which is very beautiful and magnificent in the sky, and the meteoroids in the solar system also orbit the sun in an elliptical orbit.

Some meteoroids are attracted by the earth to break into the earth's atmosphere, rubbing with the atmosphere and generating heat and luminescence, which is the meteor we see. Some meteoroids are large and fall to the ground without burning up in the atmosphere, which is a meteorite or meteorite.

The nine planets and the Sun are the Sun, Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars, and Mercury in descending order of volume.

They can be roughly divided into three categories according to the criteria of mass, size, chemical composition, and distance from the Sun: terrestrial planets Mercury, Venus, Earth, and Mars; Giant planets Jupiter, Saturn ; Periogee planets Uranus, Neptune, Pluto.

They have the characteristics of coplanarity, isotropy, and near-circularity when they rotate.

Between Mars and Jupiter there are hundreds of thousands of asteroids of various sizes and shapes, and astronomy refers to this region as the asteroid belt.

The solar system is a large family. The members of the solar system mainly include the Sun and the nine planets around the Sun, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto; This is followed by tens of thousands of small stars, meteors, and comets. All celestial bodies revolve around the Sun, and the Sun and these celestial bodies form a system of celestial bodies centered on the Sun.

Of the nine planets, Mercury is the closest to the Sun and is less than half the diameter of Earth. Although it is called Mercury, there is no water or gas on it, the surface temperature is as high as 500, and the night drops to about minus 170, the temperature difference is so large that the existence of life is not allowed at all. I don't know if you have noticed that at dawn and dusk, there is a particularly bright star in the night sky alternately in the east and west, which is generally called "morning star" or "evening star", which is one of the nine planets - Venus, also called "Taibai Star" or "Taibai Star".

The most striking of the nine planets is Mars, which is the closest to our Earth, with many places close to our Earth, and has four seasons, day and night. However, its year is equivalent to 687 days on the earth, and the temperature difference is quite large, 28 during the day and about -132 at night, and no life survives. Jupiter is the largest of the nine planets, more than 1,300 Earth-sized.

It is farther away from Earth, so it doesn't look as bright as Venus. Jupiter orbits in the sky once every 12 years, passing through one constellation each year. In ancient times, Jupiter's orbit was divided into 12 times, one time is a year, so Jupiter is also called the "year star" in China, Saturn is second only to Jupiter, its volume is 745 times that of the earth, and the mass is 95 times that of the earth.

Saturn wears a very bright "necklace". This ring is made up of countless small rocks and Xiaoice blocks with an average diameter of less than one meter, and it is the second giant planet of the solar system. Uranus, Neptune, and Pluto are all newly discovered.

Pluto is the smallest, it takes 248 years to orbit the Sun, and it is about 5.9 billion kilometers away from the Sun, so Pluto is a very cold and dark world.