Planets of our solar system with you. Solar system planets in order All planets in order

The solar system is a group of planets revolving in certain orbits around a bright star - the Sun. This luminary is the main source of heat and light in the solar system.

It is believed that our system of planets was formed as a result of the explosion of one or more stars and this happened about 4.5 billion years ago. At first, the solar system was a collection of gas and dust particles, however, over time and under the influence of its own mass, the Sun and other planets arose.

Planets of the solar system

In the center of the solar system is the Sun, around which eight planets move in their orbits: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

Until 2006, Pluto also belongs to this group of planets, it was considered the 9th planet from the Sun, however, due to its considerable distance from the Sun and its small size, it was excluded from this list and called a dwarf planet. Rather, it is one of several dwarf planets in the Kuiper Belt.

All the above planets are usually divided into two large groups: the terrestrial group and the gas giants.

The terrestrial group includes such planets as: Mercury, Venus, Earth, Mars. They are distinguished by their small size and rocky surface, and in addition, they are located closer than the others to the Sun.

The gas giants include: Jupiter, Saturn, Uranus, Neptune. They are characterized by large sizes and the presence of rings, which are ice dust and rocky pieces. These planets are made up mostly of gas.

Mercury

This planet is one of the smallest in the solar system, its diameter is 4,879 km. In addition, it is closest to the Sun. This neighborhood predetermined a significant temperature difference. The average temperature on Mercury during the day is +350 degrees Celsius, and at night it is -170 degrees.

Mercury is the first planet from the Sun.
There are no seasons on Mercury. The tilt of the planet's axis is almost perpendicular to the plane of the planet's orbit around the Sun.
The temperature on the surface of Mercury is not the highest, although the planet is located closest to the Sun. He lost first place to Venus.
The first research vehicle to visit Mercury was Mariner 10. It conducted a series of demonstration flybys in 1974.
A day on Mercury lasts 59 Earth days, and a year is only 88 days.
On Mercury, the most dramatic temperature changes are observed, which reach 610 ° C. During the day, the temperature can reach 430 ° C, and at night -180 ° C.
The force of gravity on the surface of the planet is only 38% of the Earth's. This means that on Mercury you could jump three times as high, and it would be easier to lift heavy objects.
The first telescope observations of Mercury were made by Galileo Galilei in the early 17th century.
Mercury has no natural satellites.
The first official map of the surface of Mercury was published only in 2009, thanks to data obtained from the Mariner 10 and Messenger spacecraft.

Venus

This planet is the second from the Sun. In size, it is close to the diameter of the Earth, the diameter is 12,104 km. In all other respects, Venus is significantly different from our planet. A day here lasts 243 Earth days, and a year - 255 days. The atmosphere of Venus is 95% carbon dioxide, which creates a greenhouse effect on its surface. This leads to the fact that the average temperature on the planet is 475 degrees Celsius. The atmosphere also includes 5% nitrogen and 0.1% oxygen.

Venus is the second planet from the Sun in the solar system.
Venus is the hottest planet in the solar system, although it is the second planet from the sun. Surface temperature can reach 475°C.
The first spacecraft sent to explore Venus was launched from Earth on February 12, 1961 and was called Venera 1.
Venus is one of two planets that has a different direction of rotation than most planets in the solar system.
The orbit of the planet around the Sun is very close to circular.
The day and night temperatures of the surface of Venus are practically the same due to the large thermal inertia of the atmosphere.
Venus makes one revolution around the Sun in 225 Earth days, and one revolution around its axis in 243 Earth days, that is, one day on Venus lasts more than one year.
The first telescope observations of Venus were made by Galileo Galilei in the early 17th century.
Venus has no natural satellites.
Venus is the third brightest object in the sky, after the Sun and Moon.

Earth

Our planet is located at a distance of 150 million km from the Sun, and this allows us to create on its surface a temperature suitable for the existence of water in liquid form, and, therefore, for the emergence of life.

Its surface is 70% covered with water, and it is the only one of the planets that has such an amount of liquid. It is believed that many thousands of years ago, the steam contained in the atmosphere created the temperature on the Earth's surface necessary for the formation of water in liquid form, and solar radiation contributed to photosynthesis and the birth of life on the planet.

Earth is the third planet from the sun in the solar system.a;
One natural satellite revolves around our planet - the Moon;
Earth is the only planet not named after a divine being;
The Earth's density is the largest of all the planets in the solar system;
The speed of the Earth's rotation is gradually slowing down;
The average distance from the Earth to the Sun is 1 astronomical unit (a conventional measure of length in astronomy), which is approximately 150 million km;
The earth has a magnetic field strong enough to protect living organisms on its surface from harmful solar radiation;
The first artificial Earth satellite called PS-1 (The Simplest Satellite - 1) was launched from the Baikonur Cosmodrome on the Sputnik launch vehicle on October 4, 1957;
In orbit around the Earth, compared with other planets, there is the largest number of spacecraft;
Earth is the largest terrestrial planet in the solar system;

Mars

This planet is the fourth in a row from the Sun and is 1.5 times more distant from it than the Earth. The diameter of Mars is smaller than Earth's and is 6,779 km. The average air temperature on the planet ranges from -155 degrees to +20 degrees at the equator. The magnetic field on Mars is much weaker than that of the Earth, and the atmosphere is quite rarefied, which allows solar radiation to freely affect the surface. In this regard, if there is life on Mars, it is not on the surface.

When surveyed with the help of rovers, it was found that there are many mountains on Mars, as well as dried riverbeds and glaciers. The surface of the planet is covered with red sand. Iron oxide gives Mars its color.

Mars is located on the fourth orbit from the Sun;
The Red Planet hosts the tallest volcano in the solar system;
Of the 40 exploration missions sent to Mars, only 18 were successful;
Mars has the largest dust storms in the solar system;
In 30-50 million years, a system of rings will be located around Mars, like that of Saturn;
Fragments of Mars have been found on Earth;
The sun from the surface of Mars looks half as large as from the surface of the Earth;
Mars is the only planet in the solar system that has polar ice caps;
Two natural satellites revolve around Mars - Deimos and Phobos;
Mars has no magnetic field;

Jupiter

This planet is the largest in the solar system and has a diameter of 139,822 km, which is 19 times larger than the earth. A day on Jupiter lasts 10 hours, and a year is approximately 12 Earth years. Jupiter is mainly composed of xenon, argon, and krypton. If it were 60 times larger, it could become a star due to a spontaneous thermonuclear reaction.

The average temperature on the planet is -150 degrees Celsius. The atmosphere is made up of hydrogen and helium. There is no oxygen or water on its surface. There is an assumption that there is ice in the atmosphere of Jupiter.

Jupiter is located in the fifth orbit from the Sun;
In the earth's sky, Jupiter is the fourth brightest object, after the Sun, Moon and Venus;
Jupiter has the shortest day of all the planets in the solar system;
In Jupiter's atmosphere, one of the longest and most powerful storms in the solar system, better known as the Great Red Spot, rages;
Jupiter's moon, Ganymede, is the largest moon in the solar system;
Around Jupiter is a thin system of rings;
Jupiter was visited by 8 research vehicles;
Jupiter has a strong magnetic field;
If Jupiter were 80 times more massive, it would become a star;
There are 67 natural satellites revolving around Jupiter. This is the largest figure in the solar system;

Saturn

This planet is the second largest in the solar system. Its diameter is 116,464 km. It is most similar in composition to the Sun. A year on this planet lasts quite a long time, almost 30 Earth years, and a day is 10.5 hours. The average surface temperature is -180 degrees.

Its atmosphere consists mainly of hydrogen and a small amount of helium. Thunderstorms and auroras often occur in its upper layers.

Saturn is the sixth planet from the Sun;
Saturn's atmosphere has some of the strongest winds in the solar system;
Saturn is one of the least dense planets in the solar system;
Around the planet is the largest ring system in the solar system;
One day on the planet lasts almost one Earth year and is equal to 378 Earth days;
Saturn was visited by 4 research spacecraft;
Saturn together with Jupiter make up approximately 92% of the entire planetary mass of the solar system;
One year on the planet lasts 29.5 Earth years;
There are 62 known natural satellites revolving around the planet;
Currently, the automatic interplanetary station Cassini is engaged in the study of Saturn and its rings;

Uranus

Uranus, computer artwork.

Uranus is the third largest planet in the solar system and the seventh from the sun. It has a diameter of 50,724 km. It is also called the "ice planet", as the temperature on its surface is -224 degrees. A day on Uranus lasts 17 hours, and a year is 84 Earth years. At the same time, summer lasts as long as winter - 42 years. Such a natural phenomenon is due to the fact that the axis of that planet is located at an angle of 90 degrees to the orbit, and it turns out that Uranus, as it were, "lies on its side."

Uranus is located in the seventh orbit from the Sun;
The first to know about the existence of Uranus was William Herschel in 1781;
Only one spacecraft has visited Uranus, Voyager 2 in 1982;
Uranus is the coldest planet in the solar system;
The equatorial plane of Uranus is inclined to the plane of its orbit almost at a right angle - that is, the planet rotates retrograde, "lying on its side slightly upside down";
The moons of Uranus bear names taken from the works of William Shakespeare and Alexander Pope, not from Greek or Roman mythology;
A day on Uranus lasts about 17 Earth hours;
There are 13 known rings around Uranus;
One year on Uranus lasts 84 Earth years;
There are 27 known natural satellites revolving around Uranus;

Neptune

Neptune is the eighth planet from the Sun. In its composition and size, it is similar to its neighbor Uranus. The diameter of this planet is 49,244 km. A day on Neptune lasts 16 hours, and a year is equal to 164 Earth years. Neptune belongs to the ice giants and for a long time it was believed that no weather events occur on its icy surface. However, it has recently been found that Neptune has raging eddies and wind speeds the highest of the planets in the solar system. It reaches 700 km / h.

Neptune has 14 moons, the most famous of which is Triton. It is known that it has its own atmosphere.

Neptune also has rings. This planet has 6.

Neptune is the most distant planet in the solar system and occupies the eighth orbit from the Sun;
Mathematicians were the first to know about the existence of Neptune;
There are 14 moons circling Neptune;
The orbit of Nepputna is removed from the Sun by an average of 30 AU;
One day on Neptune lasts 16 Earth hours;
Neptune has only been visited by one spacecraft, Voyager 2;
Around Neptune there is a system of rings;
Neptune has the second highest gravity after Jupiter;
One year on Neptune lasts 164 Earth years;
The atmosphere on Neptune is extremely active;

Jupiter is considered the largest planet in the solar system.
There are 5 dwarf planets in the solar system, one of which was reclassified as Pluto.
There are very few asteroids in the solar system.
Venus is the hottest planet in the solar system.
About 99% of the space (by volume) is occupied by the Sun in the solar system.
One of the most beautiful and original places in the solar system is the satellite of Saturn. There you can see a huge concentration of ethane and liquid methane.
Our solar system has a tail that resembles a four-leaf clover.
The sun follows a continuous 11-year cycle.
There are 8 planets in the solar system.
The solar system is fully formed thanks to a large gas and dust cloud.
Spacecraft flew to all the planets of the solar system.
Venus is the only planet in the solar system that rotates counterclockwise on its axis.
Uranus has 27 moons.
The largest mountain is on Mars.
A huge mass of objects in the solar system fell on the sun.
The solar system is part of the Milky Way galaxy.
The sun is the central object of the solar system.
The solar system is often divided into regions.
The sun is a key component of the solar system.
The solar system was formed about 4.5 billion years ago.
Pluto is the most distant planet in the solar system.
Two regions in the solar system are filled with small bodies.
The solar system is built contrary to all the laws of the universe.
If we compare the solar system and space, then it is just a grain of sand in it.
Over the past few centuries, the solar system has lost 2 planets: Vulcan and Pluto.
Researchers claim that the solar system was created artificially.
The only satellite in the solar system that has a dense atmosphere and whose surface cannot be seen due to cloud cover is Titan.
The region of the solar system beyond the orbit of Neptune is called the Kuiper Belt.
The Oort cloud is a region of the solar system that serves as the source of a comet and a long period of revolution.
Every object in the solar system is held there by gravity.
The leading theory of the solar system proposes the emergence of planets and satellites from a huge cloud.
The solar system is considered the most secret particle of the universe.
There is a huge asteroid belt in the solar system.
On Mars, you can see the eruption of the largest volcano in the solar system, which is called Olympus.
Pluto is considered to be the outskirts of the solar system.
Jupiter has a large ocean of liquid water.
The Moon is the largest satellite in the solar system.
The largest asteroid in the solar system is Pallas.
The brightest planet in the solar system is Venus.
The majority of the solar system is made up of hydrogen.
Earth is an equal member of the solar system.
The sun heats up slowly.
Oddly enough, the largest reserves of water in the solar system are in the sun.
The plane of the equator of each planet in the solar system diverges from the plane of the orbit.
The satellite of Mars with the name Phobos is an anomaly of the solar system.
The solar system can amaze with its diversity and scale.
The planets of the solar system are influenced by the sun.
The outer shell of the solar system is considered the haven of satellites and gas giants.
A huge number of planetary satellites of the solar system are dead.
The largest asteroid, with a diameter of 950 km, is called Ceres.

The solar system is a group of planets revolving in certain orbits around a bright star - the Sun. This luminary is the main source of heat and light in the solar system.

Planets of the solar system

In the center of the solar system is the Sun, around which eight planets move in their orbits: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

All the above planets are usually divided into two large groups: the terrestrial group and the gas giants.

The sun

The sun is the star around which all the planets and moons in the solar system revolve. It is made up of hydrogen and helium. The Sun is 4.5 billion years old, only in the middle of its life cycle, gradually increasing in size. Now the diameter of the Sun is 1,391,400 km. In the same number of years, this star will expand and reach the orbit of the Earth.

The sun is the source of heat and light for our planet. Its activity increases or becomes weaker every 11 years.

Due to the extremely high temperatures on its surface, a detailed study of the Sun is extremely difficult, but attempts to launch a special apparatus as close as possible to the star continue.

Terrestrial group of planets

Mercury

If we focus on the earth's year, then Mercury makes a complete revolution around the sun in 88 days, and one day there lasts 59 earth days. It was noticed that this planet can periodically change the speed of its rotation around the Sun, its distance from it and its position.

There is no atmosphere on Mercury, in connection with this, asteroids often attack it and leave behind a lot of craters on its surface. Sodium, helium, argon, hydrogen, oxygen were discovered on this planet.

A detailed study of Mercury presents great difficulties due to its close proximity to the Sun. Mercury can sometimes be seen from Earth with the naked eye.

According to one theory, it is believed that Mercury was previously a satellite of Venus, however, this assumption has not yet been proven. Mercury has no satellite.

Venus

Unlike the Earth, most of whose surface is covered with water, there is no liquid on Venus, and almost the entire surface is occupied by solidified basaltic lava. According to one theory, there used to be oceans on this planet, however, as a result of internal heating, they evaporated, and the vapors were carried away by the solar wind into outer space. Near the surface of Venus, weak winds blow, however, at an altitude of 50 km, their speed increases significantly and amounts to 300 meters per second.

There are many craters and hills on Venus, reminiscent of terrestrial continents. The formation of craters is associated with the fact that earlier the planet had a less dense atmosphere.

A distinctive feature of Venus is that, unlike the other planets, its movement does not occur from west to east, but from east to west. It can be seen from Earth even without the help of a telescope after sunset or before sunrise. This is due to the ability of its atmosphere to reflect light well.

Venus has no satellite.

Earth

A feature of our planet is that under the earth's crust there are huge tectonic plates that, moving, collide with each other and lead to a change in the landscape.

The diameter of the Earth is 12,742 km. An Earth day lasts 23 hours 56 minutes 4 seconds, and a year - 365 days 6 hours 9 minutes 10 seconds. Its atmosphere is 77% nitrogen, 21% oxygen and a small percentage of other gases. None of the atmospheres of other planets in the solar system has such an amount of oxygen.

According to scientists, the age of the Earth is 4.5 billion years, about the same time its only satellite, the Moon, exists. It is always turned to our planet with only one side. There are many craters, mountains and plains on the surface of the Moon. It reflects sunlight very weakly, so it can be seen from Earth in a pale moonshine.

Mars

One of the most frequent events on the planet are dust storms, which are voluminous and destructive. Geological activity on Mars could not be detected, however, it is reliably known that significant geological events took place on the planet earlier.

The atmosphere of Mars is 96% carbon dioxide, 2.7% nitrogen and 1.6% argon. Oxygen and water vapor are present in minimal quantities.

A day on Mars is similar in duration to that on Earth and is 24 hours 37 minutes 23 seconds. A year on the planet lasts twice as long as the earth - 687 days.

The planet has two moons Phobos and Deimos. They are small and uneven in shape, reminiscent of asteroids.

Sometimes Mars is also visible from Earth with the naked eye.

gas giants

Jupiter

Jupiter has a huge number of satellites - 67. The largest of them are Io, Ganymede, Callisto and Europa. Ganymede is one of the largest moons in the solar system. Its diameter is 2634 km, which is approximately the size of Mercury. In addition, a thick layer of ice is visible on its surface, under which there may be water. Callisto is considered the oldest of the satellites, since it is its surface that has the largest number of craters.

Saturn

Its atmosphere consists mainly of hydrogen and a small amount of helium. Thunderstorms and auroras often occur in its upper layers.

Saturn is unique in that it has 65 moons and several rings. The rings are made up of small ice particles and rock formations. Ice dust perfectly reflects light, so the rings of Saturn are very clearly visible in a telescope. However, he is not the only planet to have a diadem, it is just less noticeable on other planets.

Uranus

Uranus has 27 moons. The most famous of them are: Oberon, Titania, Ariel, Miranda, Umbriel.

Neptune

Neptune has 14 moons, the most famous of which is Triton. It is known that it has its own atmosphere.

Neptune also has rings. This planet has 6.

Interesting facts about the planets of the solar system

Compared to Jupiter, Mercury appears to be a dot in the sky. These are actually the proportions in the solar system:

Venus is often called the Morning and Evening Star, since it is the first of the stars visible in the sky at sunset and the last to disappear from visibility at dawn.

An interesting fact about Mars is the fact that methane was found on it. Due to the rarefied atmosphere, it is constantly evaporating, which means that the planet has a constant source of this gas. Such a source can be living organisms inside the planet.

Jupiter has no seasons. The biggest mystery is the so-called "Great Red Spot". Its origin on the surface of the planet is still not fully understood. Scientists suggest that it is formed by a huge hurricane that has been rotating at a very high speed for several centuries.

An interesting fact is that Uranus, like many planets in the solar system, has its own system of rings. Due to the fact that the particles that make up them reflect light poorly, the rings could not be detected immediately after the discovery of the planet.

Neptune has a rich blue color, so it was named after the ancient Roman god - the master of the seas. Due to its remote location, this planet was one of the last to be discovered. At the same time, its location was calculated mathematically, and over time it could be seen, and it was in the calculated place.

Light from the Sun reaches the surface of our planet in 8 minutes.

The solar system, despite its long and thorough study, is still fraught with many mysteries and mysteries that have yet to be revealed. One of the most fascinating hypotheses is the assumption of the presence of life on other planets, the search for which is actively continuing.

Our solar system is made up of the sun, planets orbiting it, and smaller celestial bodies. All of these are mysterious and amazing, because they are still not fully understood. Below will be indicated the sizes of the planets of the solar system in ascending order, and briefly talk about the planets themselves.

There is a well-known list of planets in which they are listed in order of their distance from the Sun:

Pluto used to be in last place, but in 2006 it lost its status as a planet, as larger celestial bodies were found farther away. These planets are divided into stone (inner) and giant planets.

Brief information about the stone planets

The inner (stone) planets include those bodies that are located inside the asteroid belt that separates Mars and Jupiter. They got their name "stone" because they consist of various hard rocks, minerals and metals. They are united by a small number or even the absence of satellites and rings (like Saturn). On the surface of the stone planets there are volcanoes, depressions and craters formed as a result of the fall of other cosmic bodies.

But if we compare their sizes and arrange them in ascending order, the list will look like this:

Brief information about the giant planets

The giant planets are located beyond the asteroid belt and therefore they are also called outer. They consist of very light gases - hydrogen and helium. These include:

But if you make a list by the size of the planets in the solar system in ascending order, then the order changes:

A little information about the planets

In modern scientific understanding, a planet means a celestial body that revolves around the Sun and has enough mass for its own gravity. Thus, there are 8 planets in our system, and, importantly, these bodies are not similar to each other: each has its own unique differences, both in appearance and in the very components of the planet.

- This is the closest planet to the Sun and the smallest among the rest. It weighs 20 times less than the Earth! But, despite this, it has a sufficiently high density, which allows us to conclude that there are a lot of metals in its depths. Due to its close proximity to the Sun, Mercury is subject to sharp temperature changes: at night it is very cold, during the day the temperature rises sharply.

- This is the next planet close to the Sun, in many ways similar to the Earth. It has a more powerful atmosphere than the Earth, and is considered a very hot planet (its temperature is above 500 C).

is a unique planet due to its hydrosphere, and the presence of life on it led to the appearance of oxygen in its atmosphere. Most of the surface is covered with water, and the rest is occupied by the continents. A unique feature is the tectonic plates, which move, albeit very slowly, which leads to a change in the landscape. The Earth has one satellite - the Moon.

Also known as the "Red Planet". It gets its fiery red color due to the large amount of iron oxides. Mars has a very rarefied atmosphere and much lower atmospheric pressure than Earth. Mars has two satellites - Deimos and Phobos.

- this is a real giant among the planets of the solar system. Its weight is 2.5 times the weight of all the planets combined. The surface of the planet is made up of helium and hydrogen and is similar in many ways to the sun. Therefore, it is not surprising that there is no life on this planet - no water and no solid surface. But Jupiter has a large number of satellites: 67 are known at the moment.

- this planet is famous for the presence of rings, consisting of ice and dust, revolving around the planet. With its atmosphere, it resembles that of Jupiter, and is slightly smaller in size than this giant planet. In terms of the number of satellites, Saturn is also slightly behind - it knows 62 of them. The largest satellite, Titan, is larger than Mercury.

- the lightest planet among the outer ones. Its atmosphere is the coldest in the entire system (minus 224 degrees), it has a magnetosphere and 27 satellites. Uranus is made up of hydrogen and helium, and ammonia ice and methane have also been noted. Due to the fact that Uranus has a large axial tilt, it seems that the planet is rolling rather than rotating.

- despite being smaller than y, it is heavier than it and exceeds the mass of the Earth. This is the only planet that was found through mathematical calculations, and not through astronomical observations. On this planet, the strongest winds in the solar system were recorded. Neptune has 14 moons, one of which, Triton, is the only one that rotates backwards.

It is very difficult to imagine all the scales of the solar system within the studied planets. It seems to people that the Earth is a huge planet, and, in comparison with other celestial bodies, it is. But if you put giant planets next to it, then the Earth already takes on tiny sizes. Of course, next to the Sun, all celestial bodies seem small, so to represent all the planets in their full scale is a difficult task.

The most famous classification of the planets is their distance from the Sun. But a listing that takes into account the sizes of the planets of the solar system in ascending order will also be correct. The list will be presented as follows:

As you can see, the order has not changed much: the first lines are the inner planets, and the first place is occupied by Mercury, and the other positions are the outer planets. In fact, it doesn’t matter at all in what order the planets are located, from this they will not become less mysterious and beautiful.

The solar system is a system of planets, which includes its center - the Sun, as well as other objects of the Cosmos. They revolve around the sun. More recently, 9 objects of the Cosmos that revolve around the Sun were called “planet”. Now scientists have established that beyond the boundaries of the solar system there are planets that revolve around stars.

In 2006, the Union of Astronomers declared that the planets of the solar system are spherical cosmic objects revolving around the sun. On the scale of the solar system, the Earth appears to be extremely small. In addition to the Earth, eight planets revolve around the Sun in their individual orbits. All of them are larger than the Earth. They rotate in the plane of the ecliptic.

Planets in the solar system: types

Location of the terrestrial group in relation to the Sun

The first planet is Mercury, followed by Venus; next comes our Earth and finally Mars.
The terrestrial planets do not have many satellites or moons. Of these four planets, only Earth and Mars have moons.

The planets that belong to the terrestrial group are highly dense, composed of metal or stone. Basically, they are small and rotate around their own axis. Their rotation speed is also low.

gas giants

These are the four space objects that are at the greatest distance from the Sun: Jupiter is at number 5, followed by Saturn, then Uranus and Neptune.

Jupiter and Saturn are impressive planets, made up of compounds of hydrogen and helium. The density of gas planets is low. They rotate at high speed, have satellites and are surrounded by asteroid rings.
“Ice giants”, which include Uranus and Neptune, are smaller, their atmospheres contain methane, carbon monoxide.

Gas giants have a strong gravitational field, so they can attract many space objects, unlike the terrestrial group.

According to scientists, asteroid rings are the remains of moons altered by the gravitational field of the planets.

dwarf planet

Dwarfs are space objects, the size of which does not reach the planet, but exceeds the dimensions of the asteroid. There are many such objects in the solar system. They are concentrated in the Kuiper belt region. The satellites of the gas giants are dwarf planets that have left their orbit.

Planets of the solar system: the process of emergence

According to the hypothesis of cosmic nebulae, stars are born in clouds of dust and gas, in nebulae.
Due to the force of attraction, substances are combined. Under the influence of the concentrated force of gravity, the center of the nebula is compressed and stars are formed. Dust and gases are transformed into rings. The rings rotate under the influence of gravity, and planetasimals form in whirlpools, which increase and attract cosmetic objects to themselves.

Under the influence of the force of gravity, the planetazimals are compressed and acquire a spherical shape. Spheres can combine and gradually turn into protoplanets.

There are eight planets within the solar system. They revolve around the sun. Their location is:
The nearest “neighbor” of the Sun is Mercury, followed by Venus, then the Earth, then Mars and Jupiter, further from the Sun are Saturn, Uranus and the last one, Neptune.

Pluto by decision of the MAC (International Astronomical Union) no longer refers to the planets of the solar system, but is a dwarf planet and even inferior in diameter to the other dwarf planet Eris. Pluto's designation is 134340.

solar system

Scientists put forward many versions of the origin of our solar system. In the 40s of the last century, Otto Schmidt put forward the hypothesis that the solar system arose because cold dust clouds were attracted to the Sun. Over time, clouds formed the foundations of future planets. In modern science, it is Schmidt's theory that is the main one. The solar system is only a small part of a large galaxy called the Milky Way. The Milky Way contains over a hundred billion different stars. It took humanity thousands of years to realize such a simple truth. The discovery of the solar system did not happen immediately, step by step, on the basis of victories and mistakes, a system of knowledge was formed. The main basis for studying the solar system was knowledge about the Earth.

Fundamentals and Theories

The main milestones in the study of the solar system are the modern atomic system, the heliocentric system of Copernicus and Ptolemy. The most likely version of the origin of the system is the Big Bang theory. In accordance with it, the formation of the galaxy began with the "scattering" of the elements of the megasystem. At the turn of the impenetrable house, our solar system was born. The basis of everything is the Sun - 99.8% of the total volume, the planets account for 0.13%, the remaining 0.0003% are various bodies of our system. Scientists divide the planets into two conditional groups . The first includes planets of the Earth type: the Earth itself, Venus, Mercury. The main distinguishing characteristics of the planets of the first group are a relatively small area, hardness, and a small number of satellites. The second group includes Uranus, Neptune and Saturn - they are distinguished by their large size (giant planets), they are formed by helium and hydrogen gases.

In addition to the Sun and planets, our system also includes planetary satellites, comets, meteorites and asteroids.

Particular attention should be paid to the asteroid belts that are located between Jupiter and Mars, and between the orbits of Pluto and Neptune. At the moment, there is no unequivocal version of the emergence of such formations in science.
Which planet is not considered a planet now:

Pluto was considered a planet from the time of its discovery until 2006, but later in the outer part of the solar system many celestial bodies were discovered that were comparable in size to Pluto and even exceeded it. To avoid confusion, a new definition of the planet was given. Pluto did not fall under this definition, so it was assigned a new "status" - a dwarf planet. So, Pluto can serve as an answer to the question: before it was considered a planet, but now it is not. However, some scientists continue to believe that Pluto should be reclassified back into a planet.

Scientists' forecasts

Based on research, scientists say that the sun is approaching the middle of its life path. It is unimaginable to imagine what will happen if the Sun goes out. But scientists say it's not only possible, it's inevitable. The age of the Sun was determined using the latest computer developments and found out that it has about five billion years. According to astronomical law, the life of a star like the Sun lasts about ten billion years. Thus, our solar system is in the middle of the life cycle. What do scientists mean by the word "goes out"? The huge solar energy is the energy of hydrogen, which in the core becomes helium. Every second, about six hundred tons of hydrogen in the core of the Sun is converted into helium. According to scientists, the Sun has already used up most of its hydrogen reserves.

If instead of the Moon there were planets of the solar system: