Are there comets in the solar system that are bigger than Earth? Where is it?

It depends on what your comet size standard is. If the size of the comet is taken as the size of the comet, the comet is generally much larger than the Earth, and the comet of some comets can even be compared with the size of the sun, of course, the density of the comet is extremely low.

But if the size of the comet's nucleus is used as the size of the comet, it is generally extremely small. There is simply no comet with a nucleus larger than the Earth. Comets like that are about to become planets under their own gravitational pull.

At least no such comet has been found. Comet nuclei are generally only a few kilometers in size.

To put it simply. Bigger than the Sun is talking about the comet of a comet.

The most recent reached a diameter of 1.4 million km.

The sun is 10,000 kilometers in diameter.

The Earth is 10,000 kilometers in diameter.

In terms of comets, comets are basically larger than the earth.

The nucleus of the comet is not larger than 1,000 kilometers.

Refers to a comet moving in the solar system, which has not yet been found to be larger than the Earth. Many comets do not orbit the Sun, they only pass by in the solar system, or they orbit more than one center of the Sun. The universe is so big that there are no surprises, and it cannot be ruled out that there are super-large comets in the universe.

However, if it was really in the solar system, it should have been discovered a long time ago, and human beings have been studying the solar system for a long time. It's like saying you don't know how much sand you have in your house, but if you ask someone as big as you, you won't lose sight.

If in the solar system, you say something bigger than the Earth, can't we see it? The solar system is just that little place.

Bigger than the Earth is no longer called a comet.

Is it like an asteroid that is bigger than a planet?

Not sure, no one can be sure now. What if the comet's orbital period is 10,000 years or more, people still can't be sure! Humanity isn't at that level yet, but I don't think it is!

It was previously accepted that there were only nine planets in the solar system, but American scientists insist that the tenth largest planet has been found outside of Pluto, and that there are no comets in the solar system that are larger than Earth.

If it's bigger than Earth, it's not called a comet.

Comets are not planets.

A comet is a celestial body that enters the solar system and orbits the sun in brightness and shape depending on the solar distance, and has a unique cloud-like appearance. Comets are divided into three parts: the nucleus, the coma, and the tail. The comet nucleus is made up of icy material, which sublimates as the comet approaches the star, forming a hazy comet and a tail of thin material around the ice core.

The comet has a very small mass and density, and when it is far away from the sun, it is just a "dirty snowball" of frozen ice cubes such as water, ammonia, methane, etc., and many solid dust particles. When approaching the Sun, the comet is broken down into a head and tail by solar radiation, which resemble a broom.

Comets do not have a fixed volume, and when they are far from the Sun, they are very small; As it approaches the Sun, the hair becomes larger and larger, the tail becomes longer, and the volume becomes very large. The length of the comet's tail can reach more than 200 million kilometers. The mass of comets is very small, and the average density of the comet's nucleus is 1 gram per cubic centimeter.

The material of the comet hair and tail is extremely thin, and its mass is only 1% to 5% of the total mass, or even less. Comet material is mainly composed of water, ammonia, methane, cyanide, nitrogen, carbon dioxide, etc., while the comet nucleus is composed of a mixture of water, carbon dioxide (dry ice), ammonia, and dust particles that have condensed into ice, making it a "dirty snowball".

The surface of the comet's nucleus is a mixture of condensed water plus dry ice, dust, ammonia, and rock. Generally, comets are composed of two parts: the head and tail of the comet. The coma head includes two parts: the nucleus and the coma.

Later, in 1920, sounding rockets, artificial satellites and spacecraft explored comets at close range, and the existing comets were found to be surrounded by a layer of giant clouds composed of hydrogen atoms on the outside of the comet, which was called "comet" or "hydrogen cloud".

In the solar system, more than 1,600 comets have been discovered by 2019, most of which revolve around the sun in the same direction, but some revolve in reverse. Comets exhibit peculiar shapes as they orbit the Sun.

There are also a large number of large and small meteoroids in the solar system, some of which are swarms, and these meteors are the product of the disintegration of comets. Large meteoroids descend to the ground and become meteorites.

The solar system is a collection of celestial bodies centered on the Sun and subject to the Sun's gravitational constraints. It includes eight planets (in descending order from closest to the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune), as well as at least 173 known moons, five identified dwarf planets and hundreds of millions of small bodies in the solar system, and Halley's Comet.

We all know that the largest celestial body in the solar system is the sun, which is the central body of the solar system, and its mass accounts for the total mass of the solar system, with a diameter of1.39 million km, 109 times that of the earth, its particles can affect all the planets of the solar system, it can be called a behemoth, but the mysterious universe is to appear anything that human science does not expect.

However, Comet Holmes has a "unique ability", which can instantly increase its brightness by chance, which can be said to be an increase in explosive potential, that is, what we call "comet explosion".

In October 2007, when Comet Holmes moved to the constellation Perseus, it suddenly exploded, changing from a 17th magnitude star to an astonishing magnitude, which is already as bright as Polaris.

Enveloped in a circle of gas, it has changed from a bright spot to a bright circle, and its diameter has exceeded at this time400,000 km, more than 100 million kilometers from the sun.

Since its eruption, Comet Holmes has almost no tail and is like a light bomb flying in the solar system and rapidly releasing gas and dust materials, which makes its appearance continue to expand and expand, and on November 9, 2007, its appearance diameter has clearly indicated that it has surpassed the largest star in the solar system, the Sun! According to the research of many scientists at the University of Hawaii, its diameter has been reached1.4 million km, and "tied" a bow on his body Qihong Zen body.

This continued until November 19, 2007, when Comet Holmes began to fade into a faint fading due to various reasons in the universe, disappearing after just a few weeks.

According to the changes in spectral morphology, Wang Sichao, a researcher at the Purple Mountain Observatory of the Chinese Academy of Sciences, said that astronomers from all over the world have used the data obtained from their observations to study three main views: The first view is that it is caused by an asteroid impact, because Comet Holmes often has to travel through the asteroid belt, so it is inevitable that it will be hit by an asteroid or meteoroid in the process of motion, resulting in an explosion.

The second theory is that the surface of Comet Holmes collapsed, causing the comet's nucleus to rupture, leading to its explosion.

The third view is that the comet nucleus of Comet Homs may have a relatively dense shell, and there is a small amount of volatile carbon monoxide, carbon dioxide and other ice materials in the shell, mixed with a large amount of dust materials, and the sun's irradiation of the comet nucleus makes the comet nucleus gradually accumulate dust heat energy, and after a certain extent, the volatile carbon monoxide and carbon dioxide ice substances become gas, and as the gas pressure increases, it may break through the outer shell of the comet nucleus and produce a large explosion.

The enchanting space is like to have a little surprise when human beings are proud, frustrate your spirit, and make you understand better".There are people outside the people, and there are people outside the skyThis sentence. Maybe there are no definite laws in the universe at all, and the results we have studied are only some scattered information with a certain connection, but proud human beings take them out of context and get carried away, feeling that they have mastered the laws of the universe, and all kinds of accidents are happening every minute and every second on the earth alone, and the universe is so big, maybe it takes more people like "gods descending from heaven" to piece together those secrets.

This number is immeasurable. Because the origin of comets is still an unsolved mystery. The number is also extremely large.

1. It has been proposed that there is a very large comet region in the outer solar system, where there are about 100 billion comets called Oort clouds.

2. Some people also believe that comets formed near Jupiter or other planets;

3. Some people believe that comets formed in remote regions of the solar system; Some even believe that comets are visitors from outside the solar system. It's not just that the total number of comets is difficult to determine, even the mass of individual comets is uncertain.