Knowledge of the Universe

Knowledge of the Universe

I. The Process of Human Knowledge of the Universe During the period of the Western Zhou Dynasty in China, the people living in the land of China and Xia Dynasty put forward the early theory of Gaitian that the dome of the sky was like a pot, which was upside down on the flat earth; later on, it was developed into the later theory of Gaitian, which believed that the shape of the earth was also arch-shaped. In the seventh century B.C., the Babylonians believed that both the heavens and the earth were arched, with the earth surrounded by oceans and mountains at its center. The ancient Egyptians imagined the universe as a big box with the sky as the lid and the earth as the bottom, with the Nile River in the center of the earth. The ancient Indians imagined the earth as a disk shaped on several elephants, which stood on the backs of huge tortoises, and at the end of the 7th century B.C., Thales of ancient Greece thought that the earth was a huge disk floating on the water surface, with an arched dome of the sky over it. It was the ancient Greeks who first recognized that the earth was spherical. In the sixth century B.C., Pythagoras, from an aesthetic point of view, believed that the most beautiful of all three-dimensional figures was the sphere, and claimed that the heavenly bodies and the earth we live on are spherical. This idea was inherited by many ancient Greek scholars, but it was not until 1519 to 1522, when F. Magellan of Portugal led an expedition to complete the first circumnavigation of the world, that the idea that the Earth was spherical was finally confirmed. The research results of contemporary astronomy show that the universe is a celestial system with a hierarchical structure, diversified material forms, and continuous movement and development.

Second, the hierarchical structure of the universe planets are the most basic celestial system. The solar system *** has nine planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto (only a few scientists have agreed to expel it, down to dwarf planets). With the exception of Mercury and Venus, all the planets have moons orbiting them, Earth has one moon, and Saturn has the most moons, with 26 confirmed. Planets, asteroids, comets and meteoroids all orbit the central body, the Sun, and make up our solar system. The Sun, which accounts for 99.86 per cent of the total mass of the solar system, has a diameter of about 1.4 million kilometers, and Jupiter, the largest planet, has a diameter of about 140,000 kilometers. The size of the solar system is about 12 billion kilometers (with Pluto as the boundary). There is evidence that other planetary systems exist outside the solar system.250 The 250 billion sun-like stars and interstellar objects make up an even larger system of objects, the Milky Way. Most of the stars and interstellar material in the Milky Way are concentrated in an oblate spheroid, which resembles a "discus" when viewed from the side, and a swirl when viewed from the front. The Milky Way looks like a discus when viewed from the side, but when viewed from the front? The Milky Way is about 100,000 light-years in diameter, and the Sun is located in one of the arms of the Milky Way, about 30,000 light-years from the center of the Milky Way. Outside the Milky Way, there are many similar systems of objects called extragalactic galaxies, often referred to simply as galaxies. About 1 billion of them have been observed. Galaxies are also clustered into large and small groups called clusters. On average, each cluster contains about a hundred galaxies and is tens of millions of light-years across. Tens of thousands of galaxy clusters have been discovered. A small cluster of about 40 galaxies, including the Milky Way, is called a cluster. Clusters of galaxies that come together to form larger, higher-level systems are called superclusters. Superclusters tend to be long and flat, with diameters of hundreds of millions of light-years. Typically, superclusters contain only a few clusters of galaxies, and only a few superclusters contain dozens of clusters of galaxies. A supercluster consisting of this cluster and about 50 nearby clusters of galaxies is called a local supercluster. At present, the scope of astronomical observation has been extended to a vast space of 20 billion light-years, which is called the total galaxy.

III. Origin of the Universe The Hot Big Bang model of the Universe depicts the origin and evolutionary history of our Universe: our Universe began with a Big Bang 20 billion years ago, when it was extremely hot and dense. With the expansion of the universe, it went through an evolutionary process from hot to cold, from dense to sparse, and from a radiation-dominated period to a matter-dominated period until 1-2 billion years ago, when it entered the stage of large-scale formation of galaxies, and since then, it has gradually formed the universe that we see today.

Four, about the outer space knowledge

1, the universe has more than 100 billion galaxies. The largest galaxies have nearly 400 billion stars, we are in the galaxy - the banking system can be determined that there are 100 billion planets, if you want to count the stars, the Milky Way alone, a second counting a, you have to spend 3000 years to finish counting;

2, "Day "is the solar system inside the largest, it occupies about 98% of the total mass of the solar system (1.3 million Earth can be stuffed into the sun inside the sun, the sun's surface temperature of 6,000 ℃, while the internal temperature is as high as 15,000,000 ℃);

3, Jupiter is the largest planet in the solar system, but also the fastest rotating planets, in the Jupiter only 9 hours a day. Jupiter is the largest planet in our solar system, and also the fastest rotating planet, with only 9 hours and 55 minutes in a day;

4. Saturn is the second-largest planet in our solar system, and also the brightest star in our solar system, with a density so low that it floats on water;

5. In a vacuum like space, two clean, flat-surface metals of the same kind will instantly and instantly stick together, and need only to be gently pressed together (which is called cold soldering, or contact soldering);

6. Astronauts don't burp in space (because gravity is so low that stomach gases don't separate from liquids, making burping impossible);

7. In outer space, floating liquids turn into globules (due to the surface tension of the liquids, and the low gravity);

8. No one will ever hear you screaming in space (because there's no air to carry the sound waves of your screams). (because there is no air to carry the sound waves of your screams).

2. A little knowledge about space, an introduction to space

The cosmic space beyond the Earth's atmosphere, the entire space beyond the atmospheric space. Space physicists divide the atmosphere into five layers: troposphere (sea level to 10 km), stratosphere (10-40 km), mesosphere (40-80 km), thermosphere (ionosphere, 80-370 km) and the outer atmosphere (ionosphere, 370 km or more) . About 3/4 of the atmosphere over the Earth is in the troposphere, and 97% is below the stratosphere, the outer edge of which is the maximum limit of air-supported flight for aircraft. Some high-altitude rockets can enter the mesosphere. The lowest orbits of artificial satellites are in the thermosphere, where the air density is 1% of the Earth's surface. Air continues to exist at an altitude of 16,000 kilometers, and there are air particles even at an altitude of 100,000 kilometers. From a strictly scientific point of view, there is no clear boundary between airspace and outer space, but rather a gradual convergence. The Scientific and Technical Subcommittee of the United Nations Committee on the Peaceful Uses of Outer Space has pointed out that it is not yet possible to propose precise and lasting scientific criteria for delimiting outer space and airspace. In recent years, there has been a tendency to use the minimum altitude of artificial satellites above the ground (100-110) kilometers as the lowest limit of outer space....

3. Knowledge of the Universe

Knowledge of the Universe I. The Process of Human Knowledge of the Universe During the period of the Western Zhou Dynasty in China, people living in the land of China and Xia Dynasty put forward the early Gaitian theory that the dome of the sky is like a pot, inverted in the flat earth; and later on developed into the late Gaitian theory that the shape of the earth is also arch-shaped.

In the 7th century BC, the Babylonians believed that both the heavens and the earth were arched, with the earth surrounded by oceans and mountains at its center. The ancient Egyptians imagined the universe as a big box with the sky as the lid and the earth as the bottom, with the Nile in the center of the earth.

Ancient Indians imagined the disc-shaped earth on several elephants, and the elephant stood on the back of a giant tortoise, and at the end of the 7th century BC, the ancient Greek Thales thought that the earth was a huge disk floating on the water, above which was covered by an arching dome of the sky. The first to recognize that the earth is spherical is the ancient Greeks.

In the 6th century BC, Pythagoras, from the concept of aesthetics, believed that the most beautiful of all three-dimensional shapes is the sphere, and claimed that the celestial bodies and the earth we live in are spherical. This idea was inherited by many ancient Greek scholars, but it was not until 1519-1522, when F. Magellan of Portugal led the expedition to complete the first circumnavigation of the world, that the idea of the Earth as a sphere was finally confirmed.

The research results of contemporary astronomy show that the universe is a celestial system with a hierarchical structure, diversified material forms, and continuous movement and development. The planets are the most basic celestial systems.

The solar system *** has nine planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto (only a few scientists have agreed to expel it, down to dwarf planets). Except for Mercury and Venus, all the other planets have satellites orbiting them, the Earth has one satellite, the Moon, and Saturn has the most satellites, with 26 confirmed.

The planets, asteroids, comets, and meteoroids all orbit the central body, the Sun, and make up the Solar System. The Sun, which accounts for 99.86% of the total mass of the Solar System, has a diameter of about 1.4 million kilometers, and Jupiter, the largest planet, has a diameter of about 140,000 kilometers.

The size of the Solar System is about 12 billion kilometers (bounded by Pluto). There is evidence that there are other planetary systems outside the Solar System.

The 250 billion Sun-like stars and interstellar objects make up an even more massive system of objects, the Milky Way. Most of the stars and interstellar material in the Milky Way are concentrated in an oblate spheroidal space, which resembles a discus when viewed from the side and a swirl when viewed from the front. The Milky Way is a swirling mass of stars and interstellar material.

The Milky Way is about 100,000 light-years in diameter, and the Sun is located in one of the arms of the Milky Way, about 30,000 light-years from the center of the Milky Way. Outside the Milky Way, there are many similar systems of objects called extragalactic galaxies, often referred to simply as galaxies.

About a billion of them have been observed. Galaxies are also clustered into small and large groups called galaxy clusters.

On average, each cluster has about a hundred galaxies and is tens of millions of light-years across. Tens of thousands of galaxy clusters have been discovered.

A small cluster of about 40 galaxies, including the Milky Way, is called a cluster. Clusters of galaxies that come together to form larger, higher-level systems are called superclusters.

Superclusters tend to be long and flat, with diameters of hundreds of millions of light-years. Typically, superclusters contain only a few clusters of galaxies, and only a few superclusters have dozens of clusters of galaxies.

The supercluster consists of this cluster and about 50 nearby clusters of galaxies, called the Local Supercluster. It is called the Total Galaxy, and now extends over a vast space of 20 billion light-years for astronomical observation.

III. Origin of the Universe The Hot Big Bang model of the Universe depicts the origin and evolutionary history of our Universe: our Universe began with a Big Bang 20 billion years ago, when it was extremely hot and dense. With the expansion of the universe, it went through the evolutionary process from hot to cold, from dense to sparse, from the radiation-dominated period to the material-dominated period, until 1-2 billion years ago, only to enter the stage of large-scale formation of galaxies, and since then gradually formed the universe that we see today.

IV. Trivia about outer space 1. There are more than 100 billion galaxies in the universe. The largest galaxies have nearly 400 billion stars, we are in the galaxy - the banking system can be determined to have 100 billion planets, if you want to count the stars, the Milky Way alone, a second to count a, you have to spend 3000 years to finish counting; 2, "day" is 2, "day" is the solar system inside the largest, it occupies about 98% of the total mass of the solar system (1.3 million Earth can be stuffed inside the sun, the sun's surface temperature of 6000 ℃, while the internal temperature is as high as 15,000,000 ℃); 3, Jupiter is the largest planet in the solar system, but also the fastest rotating planets, on Jupiter in a day of 9 hours and 55 minutes; 4, Saturn is the second largest planet in the solar system, and the second largest planet in the solar system, and the second largest planet in the solar system, and the second largest planet in the solar system. 4, Saturn is the second largest planet in the solar system, but also the brightest star in the solar system, its density is low enough to float on water; 5, in a vacuum like space, two clean, flat surfaces of the same kind of metal will instantly and instantly adhesion, just need to gently together (this is the cold weld, or contact welding); 6, astronauts in space will not burp (because of the gravity is too low, the stomach gas will not be separated from the liquid, so burping) Astronauts in space will not burp (because gravity is too low, the stomach gas will not be separated from the liquid, so burping is impossible); 7, in outer space, floating liquid will become a ball (this is due to the surface tension of the liquid as well as the low gravity); 8, in space, you how to scream no one to hear (because there is no air to transmit the sound waves of your screams).

4. Little knowledge of the universe

In the natural sciences, the study of the movement, structure, origin and evolution of various celestial bodies in the environment of the universe beyond the Earth, the basic discipline is called astronomy. Its history can be traced back to the budding period of human civilization. In the ancient times, nomads needed to recognize the direction of migration by water and grass, and agricultural people needed to determine the seasons for sowing according to the seasons. In the long-term practice year after year, they gradually discovered the close connection between these major events affecting their lives and astronomical phenomena such as the sun, moon and stars. The clay tablets of Babylon, the pyramids of Egypt, and the oracle bones of the Yin ruins of China have all left rich examples of the birth of astronomy. Astronomy has always made significant contributions to the progress of human civilization. 16th century Copernicus's heliocentric theory made the first time that natural science was liberated from the shackles of medieval theology; 17th century Galileo, Newton for the study of the laws of motion of celestial bodies in the solar system and the establishment of the system of classical mechanics, which is still the basis of modern engineering sciences (including astronautics), the 30's of the century on the sun and the inner structure of the star and energy research led to the thermonuclear fusion. Research led to the concept of thermonuclear fusion in the 1930s, which provided enlightenment for human beings to utilize nuclear energy; especially in the past half century, the enthusiasm of human beings in exploring the universe on the one hand strongly promoted the development of a series of high and new technologies such as telemetry and remote control, space technology, and computational technology, which directly serve the national economic sectors such as global communication, resource investigation, and weather forecasting, and the application of these technologies in astronomy has made the understanding of the universe soar, and for the first time there is an understanding of the universe, which is the basis of modern engineering sciences (including aerospace science). The understanding of the universe is advancing rapidly, and for the first time, it is possible to explain the evolutionary history of tens of billions of years from elementary particles to chemical elements, from galaxies to stars, from the sun to the earth, and from primitive organisms to human beings from the principle of unification.

The Earth we live on is an ordinary member of the Solar System. The central object of the Solar System is the Sun, which is a ball of gas with a radius of about 700,000 kilometers and a surface temperature of 6,000 K. The temperature of its core is as high as 15 million K, and the nuclear reaction of fusion of hydrogen into helium is taking place. The light and heat on which we depend are produced by this nuclear reaction. There are nine planets in our solar system, in order Mercury, Venus, Earth, Mars, Jupiter, Uranus, Neptune, and Pluto. Pluto, the outermost, is about 6 billion kilometers from the Sun. Between Mars and Jupiter orbit hundreds of thousands of asteroids. Other objects in our solar system with less mass are comets and meteors.

In the clear night sky there is a band of light that stretches across the sky, known as the Milky Way. In fact, it is a huge system of stars and diffuse matter called the Milky Way. The luminous part of the Milky Way is about 70,000 light-years in diameter, and the maximum thickness is about 20,000 light-years, like a central bulge surrounded by flat rotating discus, the Sun is an ordinary star in the Milky Way, there are about 200 billion stars in the Milky Way, which are very far away from each other. The nearest star to the sun is Nebula, which is 4.3 light-years away, or 60 million times the radius of the sun. In addition to stars, the Milky Way contains many clumps of gas and dust called nebulae. Some nebulae contain large numbers of molecules, called molecular clouds, and are often the site of star formation.

Beyond the Milky Way, there are billions of huge systems of objects that belong to the same structural level as the Milky Way, collectively called galaxies. The farthest object visible to the human eye, the Andromeda Galaxy, is one of them, which is 2.25 million light-years away from the Milky Way, but is the closest of the galaxies of comparable size to the Milky Way. Galaxies are unevenly distributed throughout the universe, some in pairs, some in groups, and large clusters containing hundreds or thousands of galaxies. Some clusters of galaxies are clustered into even larger superclusters, and no sign of unevenness has been detected between 500 million light-years and the 15 billion light-years that are currently within the reach of observations.

5. Scientific knowledge of the universe

Explanation In the diverse Chinese language, "宇" stands for "上下四方", i.e., all of space, and "宙" stands for "古往今来", i.e., all of time, and "宇": all of space, all of time, all of time, all of time, and all of time. "Yu": infinite space, "Zeus": infinite time.

So the word "universe" means "all time and space". Linking the concept of "universe" with time and space reflects the unique wisdom of our ancient people.

The word "universe", the earliest from the book "Zhuangzi", "Yu" refers to all the space, including the east, south, west, north and other places, is boundless; "Zu" refers to all the space, including the east, south, west, north and other places, is boundless; "Zu" refers to all the space, including the east, south, west, north and other places, is boundless; "Zu" refers to all the time and space. The "Yu" refers to all space, including east, south, west, north and other locations, is boundless; "Zeus" refers to all time, including the past, present, etc., is without beginning and without end. The universe is the general name of everything, is the unity of time and space.

The universe is the material world, does not depend on human will and objective existence, and in constant motion and development. The universe is diverse and unified, it includes everything, is the unity of all time and space, without time and space there is nothing.

So it contains all. Development trajectory The shape of the universe is now the Big Bang (5 pictures) is still unknown, mankind in the bold imagination.

Some say that the universe is actually a small cell of such a creature similar to human beings, while others say that the universe is a computer wise creatures with a higher intelligence than human beings to create a program or a small original, or the universe is invisible. According to the Big Bang theory, the history of the universe can be represented as a closed surface body with an open right end, as shown in the figure on the right.

The center of the left end is the explosion singularity, which extends to the right for 13.7 billion years to reach the open section where we are now. From left to right: the singularity, 400,000 years of initial expansion, nearly 400 million years of darkness, the emergence of stars, the development of galaxies and planets, and accelerated expansion with dark matter and dark energy.

Why are all the planets in the universe round? The universe is so big, why are all the planets round, or elliptical . In the universe since friction is almost non-existent, objects affect and attract each other with just a hint of force between them. We can start by assuming that some irregular objects, which are separately attracted to each other and gradually approaching each other, due to the fact that the greater the mass, the greater the gravity (gravitational force) will be, so when they accumulate to a certain extent, the greater the mass becomes, resulting in the greater the force of gravity.

These material splendors of the universe (40 sheets) then keep 'squeezing' inward (also called collapsing). Since the effect of the center point on the outside shows a uniform distribution.

So, when the substances are unevenly distributed they also 'regulate' each other and penetrate each other. This makes the distribution of these substances more uniform, and then when coupled with the fact that the center is equivalent to the external gravitational force, it causes all these substances to collapse inward at the same rate.

This results in the formation of spheres of matter. Our universe is not a single universe, there are many, many universes outside the universe, because the universe is also infinite, in the infinite place can not be nothing, so there are more universes exist, in many universes, they also exist like human beings, subtle changes, mutual attraction, mutual repulsion, our universe may be a sub-universe, may be the mother universe, our universe exists! A small amount of matter, that is dark matter, which comes from the fusion matter of another universe, our universe and the other universe will eventually perish, and finally only a very small universe, just born, will be left.

There is matter like black holes between universes and universes that attract and repel each other. Edit this paragraph Age Age Definition Definition of Age of the Universe: age of universe (age of universe) the interval of time that the universe has passed from a particular moment to the present.

For some models of the universe Saturn in natural colors, such as the Newtonian model of the universe, the hierarchical model, and the steady state model, the age of the universe has no meaning. In the usual evolutionary models of the universe, the age of the universe refers to the time interval from a cosmic scale factor of zero to the present moment.

Typically, the Hubble age is the upper limit of the age of the universe, and can be used as some kind of metric for the age of the universe. Age projection The age of the universe is about 13.75 billion years.

6. Trivia about the universe

Division of the constellations Aries: March 21 to April 20 Taurus: April 21 to May 21 Gemini: May 22 to June 21 Cancer: June 22 to July 22 Leo: July 23 to August 23 Virgo: August 24 to September 23 Libra: September 24 to October 23 Scorpio: September 24 to October 23 October 23rd Scorpio: October 24th ~ November 22nd Sagittarius: November 23rd ~ December 21st Capricorn: December 22nd ~ January 20th Aquarius: January 21st ~ February 19th Pisces: February 20th ~ March 20th Zodiac Signs The twelve signs of the Zodiac, which we often say are also known as the twelve signs of the Zodiac, is a relatively special group within the 88 signs of the zodiac.

As the Earth revolves around the Sun, from the Earth, the Sun looks like moving between the constellations, people call the Sun's route is called the ecliptic, and the trajectory of the Moon and the planets are basically not away from the ecliptic up and down the 9 degrees of the narrow region, people will be called this region of the ecliptic. In ancient times, there are twelve constellations on the ecliptic, and the sun basically passes through a zodiac constellation every month, so it is called the zodiac.

Via the sky, due to the age difference, the date of the Sun's passage through the signs of the zodiac has been very different from ancient times. Mercury Introduction Mercury is the closest planet to the Sun, its angular distance from the Sun never exceeds 28 °, the ancient Chinese called Mercury for the star.

In ancient times, Westerners thought Mercury was two planets, and they called it Mercury when they saw it in the twilight, and Apollo when they saw it in the morning sun. Later, when people realized that Mercury and Apollo were the same star, they called Mercury Mercury.

Mercury is a special messenger in Roman mythology for the gods to pass information, he wore a hat with wings, footsteps flying shoes, holding a wand, walking like flying. His powers were so great that he was hard to pin down.

Mercury is indeed like Mercury, acting quickly, God, in a month and a half it will be along a strange curve, from the sun's easternmost to the westernmost, the average speed of 47.89 kilometers per second, is the fastest moving planet in the solar system. Introduction to Venus Venus, known in ancient China as Taibai or Tai Bai Jin Xing.

It is sometimes a morning star, appearing in the eastern sky before dawn, and is called "Qiming"; sometimes it is a dusk star, appearing in the western sky after dusk, and is called "Changgeng". Venus is the brightest star in the whole day except the sun and the moon, like a dazzling diamond, so the ancient Greeks called it Aphrodite (Aphrodite) - the goddess of love and beauty, while the Romans called it Venus (Venus) - the god of beauty.

The astronomical symbol of Venus, the precious mirror used by the goddess of beauty to dress up. Introduction to the Great Planet Earth is one of the nine planets of the solar system, the third in order of proximity to the sun from near to far.

It has a natural satellite - the Moon, the two form a celestial system - the Earth-Moon system. Mars is the fourth planet in order of proximity to the Sun.

To the naked eye, it is a strikingly bright, fiery red star. It travels slowly through the stars, sometimes moving in a prograde or retrograde direction when viewed from Earth.

At its faintest, Mars has an apparent magnitude of about +1.5, and at its brightest it is brighter than the brightest star, Sirius, at -2.9, due to the fact that the distances between the Earth and Mars are always changing as the two planets orbit separately. Mars is fluorescent like fire, brightness often change, position uncertain, confusing, so, the ancient Chinese said that Mars is "fluorescence".

And in the mythology of ancient Rome in the West, it is imagined to be clad in armor covered with blood god of war "Mars" (Mars), that is, the god of war in Greek mythology Ares (Ares). Ares was of noble birth, his father was Zeus, the king of the gods, and his mother was Hera, the queen of the heavens.

The symbol for Mars in astronomy is a combination of Mars' lance and shield. About Jupiter Jupiter is one of the most noticeable planets in the solar system, it is the eldest of the nine brothers of the planets - the largest.

Its brightness is second only to Venus. In ancient China, it was called the "star of the year", and was used to keep track of the year, as it was known to have a rotational period of nearly 12 years.

In the West, Jupiter is called "Jupiter", the main god in Roman mythology. It is the equivalent of Zeus, the king of Greek mythology.

Introduction to Saturn Saturn is the sixth away from the Sun, a beautiful planet, all the telescope has seen Saturn people, all marveled. Saturn's orbital radius is 1.4 billion kilometers, and its maximum brightness is 0.4 magnitude at the time of its transit.

Saturn's orange surface, floating with bright and dark colored clouds, with the equatorial surface that emits a soft light halo, far away from the top of a large brimmed sun hat like a woman. It is more than 6000 kilometers larger than the radius of the poles.

Saturn rotational period of 29.5 years, about the number of twenty-eight lodging, the town of a lodging each year, so in ancient times, China also known as the "town star". Saturn has long been treated as the boundary of the solar system, until the discovery of Uranus in 1781, the solar system can be expanded.

Saturn's slow motion made people see it as a symbol of time and fate. Roman mythology called it the god Saturnus, or Cronus in Greek mythology, who was the father of the god-king Zeus and ascended to the throne of the sky after overthrowing his father.

Both East and West associate Saturn with agriculture. The symbol in astronomy resembles a large sickle that dominates agriculture.

Introduction to Uranus It is not difficult to view Uranus on an eyewitness night. It has a magnitude of 5.7.

It has a fairly long rotation period, circling the Sun every 84 years, moving an average of only 46" per day, and is not easy to distinguish from a star, and has been mistaken for a star many times in history and included in star charts. Neptune Introduction The average distance from the Sun from near to far, Neptune ranked eighth.

It has a brightness of magnitude 7.85 and can only be seen in a telescope. As it is a pale blue planet, it is named Neptune according to traditional planetary nomenclature.

Neptune was the Roman god of the sea who ruled over 1/3 of the universe and was quite powerful, and the astronomical symbol of Neptune symbolizes the chilly pitchfork in Neptune's hand. Asteroids are small celestial bodies mostly distributed between the orbits of Mars and Jupiter, orbiting the Sun along elliptical orbits.

In 1801, the Italian astronomer Piazzi discovered a star object, later named Ceres, in the position predicted by his predecessors. However, after further observations and calculations, it was found that Ceres was too small to be compared to the existing large planets in any way, and Ceres was then characterized as an "asteroid".

Then they discovered asteroids such as Ceres, Nuptialis, and Vesta.

Next, asteroids were discovered, such as Jupiter and Vesta.