√ Definition of the Solar System, Formed Theory and Structure (Complete)

Definition of the Solar System, Formed Theory and Structure (Complete) - In this discussion, we will explain about the solar system. Which includes the understanding of the solar system, the theory of the formation of the solar system, and the arrangement of the solar system with a complete and light discussion.

Definition of the Solar System, Formed Theory and Structure (Complete)

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Definition of the Solar System

The Solar System is a collection of celestial bodies composed of a large star called the sun, and all objects bound by its gravitational force. These objects are eight known planets with elliptical orbits, five planets dwarfs, 173 identified natural satellites, as well as millions of celestial bodies (meteors, asteroids, comets) and others etc.

The solar system can also be called the Sun family (The sun and its family), which is a system consisting of the Sun as the center of the solar system and surrounded by planets, comets (comet stars), meteors (switching stars), satellites as well asteroids.

Theory of the Formation of the Solar System

There are several theories put forward by experts, but this time we will discuss the theory that is most trusted by the international community.

1. The Nebule Theory (Theory of Mist) by Immanuel Kant (1749-1827) and Pierre Simon de Laplace (1796)

The sun and the planets that were formed from an incandescent mist are spiraling in the universe, due to the twist in shape fog that forms a circle like a big ball, the smaller the ball, the faster it spins. Making the spherical shape flatten at the poles and widen at the equator even a few masses from the mist, the rings then formed a solid mass, thus called the planets and the satellite. Meanwhile, the glowing central part remains in the form of incandescent gas which we usually see during the day as the sun.

2. Planetesimal Theory by Geologist Thomas C. Chamberlin (1843-1928) and Astronomer Forest R. Moulton (1872-1952)

The solar system could have formed as a result of another star passing close enough to the Sun, in the early stages of the Sun's formation. This closeness causes a bulge on the sun's surface, and together with the sun's internal processes, pulls material back and forth from the sun. The star's gravitational effect creates two spiral arms that extend from the sun.

While some of the material is pulled back, some will remain in orbit, cool and solidify, and into small objects they called planetesimals and some of the larger ones they called protoplanet. These objects collided over time and formed planets and moons, while the rest of the material became comets and asteroids.

3. The Tidal Theory by Two People From England Namely Sir James Jeans (1877-1946) and Harold Jeffreys (1891)

Planets are thought to have formed due to the closer parts of other stars to the sun. The near-collision situation attracted large amounts of matter from the sun and stars the other by their mutual tidal forces which then condenses into one planet.

After the star has passed, the star's gravitational pull is large enough on the surface of the sun, a tidal process occurs, such as the ebb and flow of sea water due to the gravitational pull of the moon.

Some of the sun's mass forms a cigar disjointed forming gas clumps around it suns of different sizes, these lumps froze and then formed several planets.

The above theory explains why the planets in the middle such as Jupiter, Saturn, Uranus and Neptune are giant planets while the ends are small planets. The emergence of the nine planets due to the occurrence of gas fragments from the sun that formed the cigar caused the size of these planets to vary.

But Astronomer Harold Jeffreys in 1929 found that such a collision was almost impossible. Thus the astronomer Henry Norris Russell expressed his objections to this hypothesis.

4. Dust Cloud Theory by Carl Von Weizsaeker (1940) which was later refined by Gerald P Kuiper (1950)

The solar system formed from a cloud of gas and dust. The clump of clouds undergoes compression, in the compression process the dust particles are attracted to the center of the cloud it forms a spherical lump and begins to twist, then forms a disc which is thick in the center and thin in the middle the edge. Particles in the center of the disc press against each other and generate heat and glow, this part then becomes the sun. While the outer part rotated so fast that it broke into smaller lumps, the small lumps twisted too and froze to form planets.

5. The Twin Star Theory by Fred Hoyle (1915-2001)

Our Solar System is in the form of two stars that are almost the same size and close together. One of them exploded leaving small pieces. Then the flake is trapped by the gravity of the unexploded star and begins to surround it.

The Solar System

The composition of the members of the solar system is as follows:

Sun

The sun is the parent star of the solar system and is the main component of this solar system. The star measures about 332,830 Earth masses. The large mass makes the core density large enough to be able to support the continuity of nuclear fusion and give off a tremendous amount of energy. The amount of energy emitted into space in the form of electromagnetic radiation, including the optical spectrum.

There are several properties of the sun, among others:

• The sun is a ball of hot gas that radiates its own energy in all directions
• The sun is the center of the solar system. The sun is a star that is no different from other stars.
• For us the sun is super big but in the universe, the sun is a small star
• The sun and the energy it emits becomes human life on earth
• The diameter is 100 times larger than the earth's, so if we think of the sun as an empty container, the sun can accommodate more than 1 million earths.

planets

Mercury

Mercury is the smallest inner planet and one of the closest to the Sun. The average distance to the sun is approximately 58 million km, and has a diameter or diameter of approximately 4,880 km. Mercury has no atmosphere, the temperature around the planet is between 200 ^oC to 400 ^oC. Mercury's gravity is only one-third that of Earth's.

Venus

Venus is the planet closest to Earth, it has a diameter of 12,104 km. The average distance to the Sun is 106 KM, the revolution period is 224 days, Venus's gravity is 2,300 and the air pressure is 20 atmospheres (20 times the air pressure on earth), the surface of Venus is covered by thick clouds so that it reaches 48 Km. What's interesting from the observations some spacecraft, namely the presence of young rock formations and old mountains, the atmosphere is in the form of dry dust which includes CO2, N and O2.

Earth

Earth is the third order planet, and the only planet inhabited by living things and is composed of the following composition:

• The biosphere layer: consists of the elements nickel and ferum, and is about 3,470 km thick.
• The lithosphere layer: consists of an unlucky layer because it consists of SiO2 and Al2 and O3 and the SiMa part which consists of Si) 2 and MgO and also Al203, the thickness between Sial and SiMa is irregular, in the mountains it is very deep while in the sea the SiAl part is directly related to SiMa.
• The intermediate layer is about 1,700 km thick and is composed of meteorite rocks.

Planet Earth is a special planet, because Earth is only a place for humans to live, but there are also other living things that reproduce well. Planet Earth has a satellite, the moon.

Mars

Mars seen from its path between the Earth and the Sun, the planet mars is also the closest planet to Earth, the average distance planet Mars with the Sun is 228 Million Km. Circulates around the Sun in 687 days, its rotation time is 24 hours 37 minutes 21 second. Like other planets, Mars has two satellites, namely: Deimos, which has dimensions of 10x12x16 Km and its orbital period is 30.3 days. Deimos rises and sets like the moon on Earth.

Jupiter

Jupiter is the largest planet, it has a diameter of approximately 130,000 KM. The average distance to the sun is approximately 778 million km. And the structure of Jupiter is almost the same as the structure of the sun, which consists mostly of hydrogen and also a mixture of it, namely NH3, Helium, Ammonia and Methane.

Saturn

Saturn is the second largest planet after Jupiter, the average distance to the sun is approximately 1.426 million Km. The period of revolution of the planet Saturn is about 29.5 years and the time it takes to rotate on its axis is 10 O'clock. Saturn has 17 moons, and some of the most prominent are Titan, Tethys, Rea, Dione, and three beautiful rings, the three rings are as follows:

• Ring A is the outer ring with a diameter of 260,000 km
• Ring B is the middle ring which has a diameter of about 152,000 km
• Ring C is a ring whose diameter is 160,000 km

Uranus

Uranus has an average distance from the sun of about 2,869 million Km, revolves around the sun in 84 years with a rotation speed of 11 hours. This planet has a diameter of about 49,700 Km, on the planet Uranus found an element of Helium, Hydrogen and methane. This planet has five satellites, namely Miranda, Ariel, Umbriel, Titania and Oberon. The specialty of this planet is that the location of its axis of rotation is on the same plane as the plane of its revolution, in Uranus the sun shifts from north to south in its revolution period.

Neptune

Neptune is the planet that is farthest from the sun, about 4,495 million km from the sun. And it revolves around the sun in 165 years, its rotation time is 15 hours. It has two satellites namely Triton which has a diameter of 4,000 km, and has an atmosphere and is shaped like Pluto. While the Nereid has a diameter of 2000 km, it is farther from the earth when compared to Triton

Thus has been explained about Definition of the Solar System, Formed Theory and Structure (Complete). Hopefully it can add to your insight and knowledge. Thank you for visiting and don't forget to read other articles.