The Solar System

Total solar system consists of the sun and all around Maidor of objects, including planets, moons, asteroids and comets. Earth planet which we live is the third dimension of the planets from the sun. The group is Achammsahahd planetary systems are systems containing the stars and planets revolve around other objects. It is said that this topic planets caused by a huge explosion called the Ping Pong


Solar system bodies

There are many objects that exist in the solar system and are classified into several different categories, some of these categories is less clear than others, objects as classified by the Encyclopedia:

Star: It is the sun. Sun is one of the more than 200 billion stars in our galaxy, the Milky Way, the sun occupies a center of our solar system, and are 99.86% of the mass.
Planets: the eight are, respectively, according to distance from the sun: Mercury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune -
Cars Aalghemaih Kploto and custodians.
Satellites or satellites: the satellites or satellites are natural objects smaller than planets, revolving around them.
Satellites: the small objects made and launched by humans and revolve around the planets, especially Earth.
Remnants of industrial space, which remains or wreckage of satellites, vehicles and stations Vsaúah man-made, and these are usually on the ground.
Dust and other small particles orbiting planets.
Asteroids: the objects of which the planets formed, which is about objects smaller than the size of the planet formed at the beginning of the solar system and is not now exist. The term is sometimes used to refer to meteors and comets, or particles diameter less than 10 km
Meteorites: millions of rocky objects of different shapes and sizes revolve in an orbit around the sun between the orbits of Mars and Jupiter, are located along the orbit and thus constitute something like a belt This is called the orbit of this asteroid belt.
Comets: the objects revolve around the sun in elliptical orbits form some of which reach beyond the limits of our solar system and the approach of one of them transcend from the sun and becomes covered with ice directly to vapor, leaving a cloud in the form of guilt.
Is the largest buyer of celestial block after the sun in the solar system and constitutes 0.1% of its mass.

Throughout the solar system in the galaxy

The solar system is part of our galaxy, the Milky Way galaxy, a spiral galaxy contains 200 billion stars. <<<<Add to your information!


The inner planets and outer planets

Planets of our solar system is divided into two parts, separated by a belt of asteroids:

Inner planets: the four: Mercury, Venus, Earth, and Mars.
These are the planets from the sun and proximity to the rock composition and the relative small size as the diameter of the Earth Loehr largest planets of this section only 12,756 km, and is characterized by this section includes being the only planet known so far that it is the life of our planet Earth. In addition to the small moons (3 satellites), and one of the Earth and Mars two and not Mercury and Venus satellites.

- The outer planets: the five remaining planets: Jupiter, Saturn, Uranus, Neptune.

Featuring four planets being the (gas) and large-scale structure: Vneptun these planets is smaller than a diameter of four diameter of the Earth by about four times the diameter of any diameter than interior planets combined one and a half. Frequently characterized as satellites: 63 satellites of the buyer and 50 and 30 of Saturn and Uranus and 17 for Neptune. These planets and have all four rings spin around with that common is that Saturn's rings and all that is due to the small size of the rings of other planets.

Each of the nine planets, moons except Mercury and Venus. In the solar system also Wisma Kuiper belt (including Koawar) and the Oort cloud beyond Pluto is icy asteroids and from our Lord.

Solar system

The Greeks called the sun helios. And the Romans were firing upon sol. The beginning of the formation of the solar system since the solar system 4.6 billion years Xahabh rotary gas. With time, the cloud cooled and gathered together to be large objects composed of planets and what is left of the initial materials consisted of comets and space objects that are roaming in the silence between the solar system. And by chance after 100 million years the center of heated gas cloud ball hard and exploded a nuclear explosion severely Ttoldachamms star like a star in any biography of the end of death. The sun is a star of the billions of billions of stars in the universe. Maihtwe your body and all of the chemicals as of calcium in your bones in your hair until the zinc had been formed in the hearts of stars raging for 12 billion years. And billions of light years to go we receive from the stars of the land. And to give us an indication of the size of the star, weight and age and chemical components of the stellar light during this newcomer.

By senior and the observed movements of the planets that were seen from above the Earth at night. These planets other than the sun and other stars to Aionnbos of light as it shines directly where Kalmraya reflect sunlight. And the sun is a star in the center of the solar system revolves around all the planets. And the surface of the incandescent fireball constantly temperature 5500 ° C and heart temperature reaches 15.6 million degrees Celsius. And the sun larger than the size of a large size of the Earth to the point that can accommodate more than one million land inside. It is about the same Mghazlaa rotation around a central axis, as in the planets around it. But this rotation is not as easy or streamlined, which revolve around the earth itself. Located above the sunspot activity when the sun intersect Ghazadtha together as they spin with it. And the sun spin rotation is not aerodynamically Cdoran ground.

Because the sun is not a solid mass. For this gas Achammsin poles spin at different speeds for the gas at the equator. Which makes them stray magnetic fields, and this causes deviations magnetic solar dark spots appear above the surface of the sun. This complexity in the magnetic field very much to make it shrinks and makes the north and south poles exchange their places. This process is repeated continuously. Called the solar cycle Solar cycle. The full cycle takes 22 years. And travel to the sun is impossible no matter how severe the vehicle carrying high temperature. And the inability to access not only because of the intense heat, but the solar wind around the very high degree of change the course of any vehicle approaching from the sun to the severity of this wind. And the sun made its appeal to the severity of the planets revolve around the place in the center of the sun

Solar System

Consists of the solar system from the sun the only star in our solar system revolves around the nine planets which revolves around more than 100 satellite and of countless numbers of small objects Kalkwybat and comets. And all of which are in the middle between the planets, which we call the excess space is composed of the solar system.

The solar system can be divided into two parts:

1 - Department of Internal contains the sun and the planets Mercury, Venus, Earth and its moon and Mars. 2 - external contains the outer planets Jupiter, Saturn, Uranus, Neptune and Pluto. In general ocean circulation these planets around the sun roughly oval except Saturn and Pluto Vmhitahma almost circular. But all that ocean where planets revolve around the sun, all in one level. And called the zodiac ecliptic. Except Pluto is slightly deviates from this plane. All of these planets revolve in one direction towards the counter-clockwise.

There are asteroids (Minimize the word planet) asteroids which is a small rocky bodies in the solar system revolves around the sun, especially between Mars and Jupiter and in other places around the sun itself. And comets are icy objects is coming from outside the solar system or out of them. The orbits Toblh very scattered in an irregular manner and scattered. And some asteroids can not be indistinguishable from comets, such as Pigs Chiron.

There Aloqmaraltabah of the planets that revolve around Kkbha own as does the Earth's moon. And the area around the level of the spin rotation of the planets and the sizes are different. There are several moons larger than Pluto. Qumran and larger than the planet Mercury. There are satellites catch comets that occur with craters and scars and pits. And because the land followed a single satellite, the planet Pluto, the planet followed by Sharon only. This intolerable to the earth and planetary twin planets Pluto

Date of monitoring the solar

Ancient astronomers were busy perimeter space for thousands of years. They observed a luminous dots wander among the stars in the sky, the planets, they shot the car. And called it the Roman names are:

Jupiter (Jupiter), which means king of the gods.
Mars (Mars), which means the god of war.
Mercury (Mercury), which means messenger of the gods in Romanian.
Venus (Venus) and its meaning in Romanian god of love and beauty.
Saturn (Saturn), which means Abu Jupiter and god of agriculture.
Astronomers have observed the ancient asteroids and meteors that have a tail glowed a tumble. The Arabs called it the star or a tail.

The ancients believed that the earth center of the universe. All the stars including the Sun revolves around it. But Koprnic in the 16th century, including the proven beyond a doubt that the earth and the planets in our solar system revolve around the sun in the oceans. Astronomers did not believe him until he came to Newton's laws of motion and to develop. The earth seems to us that they place a beautiful and large. While Jupiter 317 times heavier and older than she Saturn weight 95 times. In spite of these large planets, we find the sun has only 99.98% of the mass of the solar system to the severity of its appeal. And the sun grows from the earth about 109 times in size. After the invention of the telescope (the telescope) discovered three planets in the solar system. Is the planet Uranus (in 1781) and Neptune (in 1864) and Pluto (in 1930). She also found thousands of small-scale objects and asteroids Kalmznbat

Planets near the sun

And called on the four planets close to the sun (Mercury, Venus, Earth and Mars) planets ground. Because it has a rock on the surface and the four rocky planets, called the four terrestrial planets are relatively small and is composed of the same material on the ground. The four planets beyond Mars' orbit, a Jupiter, Saturn, Uranus and Neptune called gas giants because they are gaseous planets there is no ground to stand above it. The planets are also classified as natural properties. Planets of the four ground-Mercury, Venus, Earth and Mars is called Earth-like planets or the inner planets because their orbits within the Earth's orbit around the sun. It is heavy and small, rocky crust and rigid in her heart Mushorat metal except Mercury gap gas leaking from the light elements to the lack of power of its appeal. Unlike gas giants, which is located behind the Earth's orbit, called the planets Barjesseh Jovian planets. All Ahjammehoctladtha large but the density is low and is a buyer heavier planets combined.: Victlth heavier than the Earth 318 times larger than the size of 1300 times, making the density less equivalent quarter the density of the earth. And Saturn mass about 95 times the weight of the earth and its density is less than the density of water equivalent to 1 g / cm 3. Gaseous giant planets buyer faces heavy and consists of hydrogen and helium and its compounds. This consists of planets from gases and liquids and there is no water. And its rings and moons around it are many. These rings are made up of hydrogen and helium gas, and water ice and ammonia, methane and carbon monoxide. The planet Blutungda there on the edge of the solar system. And regarded by many as guilty of great and not a planet. Because the components of the comet-like components, which usually consists of ice and rock, but its orbit is quite different from the rest of the orbits of comets and planets. Alcoa Cup and beyond the nine planet Pluto is the youngest but solid ice is covered by more than the four terrestrial planets.

It is also the terrestrial planets called planets bottom or inner planets because their orbits are located between the Earth and the sun and the gas giants known as planets higher because the orbit behind the Earth's orbit. And planets Alerillh four Mercury, Venus, Earth and Mars similar to Earth in size and components of chemical and density. But the period of rotation around itself ranging. While we find Mars and Earth Adorkel them on the same complete cycle every 24 hours, we find Venus is about the same in 249 days.

Distant giant planets

The gas giant planets like Jupiter, Saturn, Uranus and Neptune, we find larger than the terrestrial planets and their atmospheres are thick and Ghazi. And less density and duration of spin around itself ranging from 10 hours to the buyer and 15 hours of Neptune. This rapid rotation causes the Tfltah poles by 2% -10%, which makes the planet's elliptical.

And almost all the planets and some satellites have an atmosphere around them. The earth surrounding atmosphere is composed mainly of oxygen, nitrogen and carbon dioxide. Venus faces and by the proportion of Aalahoktifah of carbon dioxide and traces of toxic gas sulfur dioxide, making it difficult life by. While the atmosphere of Mars by the carbon dioxide emissions by a few. But the planets Saturn, Uranus and Neptune by a high proportion of gaseous hydrogen and helium. When approaching the planet Pluto from the sun Atrkerk faces and keep away from them when it freezes and in the orbit shrinks and exhibits Kalmznb. If you visit a planet of nine planets will vary your age and your weight on it. Because each planet its own gravity and Sneineh days and duration of which vary from planet to another. It also differs in compressed air and the length of its orbit around the sun and gravity, temperature and components of the object and the density.

Moons of the solar


There are more than 300 satellite orbiting in our solar Kwakbhaalmokhtlfah They range in size from objects larger than our moon to small objects. Many of these satellites have discovered planetary space vehicles and its image. And some of them with Joe the vicinity Kqmr Titan around Saturn. And the other faces a Kqmr Jinmad magnetic fields around Jupiter. The satellites of the most active volcano in the solar system. Europe and the moon around Jupiter icy moon while Jinmad witness also appeared in the image movement in the ice sheet surface. Planetary satellites and some comets is a family attraction of the planet itself was considered belonging to the planets moons Phobos and Deimos Kqmra around Mars and the moons around Jupiter and the moon Phoebe on the planet Saturn and the moons of Uranus and the new planet Neptune's moon Nereid. .

Since 1610 and until 1977 was thought to be the planet Saturn is the planet that has Alouhbd rings around him. But now we know that the planets Jupiter, Uranus and Neptune have a ring system, although Saturn's largest ring of these planets. The components of these rings vary in size from their bodies dust, rocks and ice blocks. Most planets have magnetic fields extending in the space around the planet and all of these areas with the spin rotation of the same planet with them to sweep charged particles around it. And the sun's magnetic field also have around and that attracts all of the solar system inside.


Why do the planets and stars?

The fact that the planets and stars is made up of clusters of shrunken intensive and drag the huge gas and dust between stars. The material in these clouds in a continuous movement until the movement of clouds in the same pile attractive to spin the galaxy. As a result of this movement seem to cloud when we see it from a point near the center is going slowly. This rotation can be described as the determination of angular angular momentum constant, a measure of the movement of these space objects do not change. This consistency in the angular momentum explains that the ICDL dancers whirl around the ice Bhrkhserbah spindle when it has to be dancing on his arms close to the spin axis of the body and the closer the arms increased the speed while retaining the strongly angular momentum. When the dancer arms simplifies the less speed as a result of the final movement of spindle. This is found clear in the game (Dokhina Amona) played by children. The spin of the cloud within a group makes them shrink the asterisk itself and carries with it a part of the original angular momentum. And these clouds have fun rotating discs made up their bodies accumulate and condense to stars and planets revolving. , There is no doubt that each year of the planet and his day. Today the term defines the period in which the planet revolves around itself. The earth revolves around itself once every 24 hours until this day. Foimha equivalent to 24 hours. And each year the number of days equivalent to a planet where there is a complete cycle in the planet's orbit around the sun. For this year of land equivalent to 365 days and a quarter days