Ever had a mom’s child see the moon or the stars at night? It’s beautiful to watch the bright stars that adorn the night sky. How amazingly God created a vast universe with all sorts of things in it.
But actually it is only a small part of the vastness of the solar system.
Just imagine, there are 8 giant planets, even bigger than Earth, there are also asteroids, stars, meteors and others.
If so, what exactly is the solar system? Why can there be so many huge things in there? So how big is the solar system?
You don’t have to be embarrassed anymore. Let’s find interesting facts about the meaning of the solar system and its contents here Popmama.com.
1. What is the solar system?
Pexels—
solar system or sthey are system is a space system in which the sun and celestial bodies exist. Everything is held together by gravity and revolves around the sun either directly or indirectly.
The solar system itself is located in a large galaxy in space, namely the Milky Way galaxy.Milky Way). The word Bimasakti is taken from the character Bima who has black skin in the wayang story.
There are many celestial bodies in the solar system. Celestial bodies that orbit the sun directly and have a large size are called planets.
Celestial bodies such as the moon are not called planets because they orbit the sun indirectly. The moon is actually a natural satellite of the planet earth.
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2. What is in the solar system?
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There are many celestial bodies in the solar system. Starting from the sun, eight major planets orbiting the sun, more than 160 known moons, 5 or more dwarf planets (dwarf planet), to millions of asteroids, satellites, and comets.
All of these celestial bodies together make up the solar system and occupy space with a diameter of about 15 trillion kilometers. The part closest to the sun has the shape of a disk and is filled with all the planets. While in other areas there is an Oort cloud, which is a spherical area that is the seat of the comet.
In the solar system, there are also stars, one of which is the sun. The star itself has a special property because it is able to emit its own light.
That is why the sun provides benefits for the sustainability of life on earth, as a source of heat, a source of light.
In contrast to the nature of the sun, there are also planets. Planets are celestial bodies that do not emit their own light, but reflect sunlight. Planets also have orbits around the sun. Planets also have masses of mass and gravity that are strong enough to be spherical in shape, and have clean orbital trajectories.
There are 8 major planets in the solar system, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Everything is ordered by distance from the sun and named after the gods and goddesses of Greek and Roman Mythology, except Earth.
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3. How is the universe formed?
Pixabay/Valera268268—
Now we know what is in the solar system. Then are you curious about how this vast and large solar system could be formed? There are actually several popular theories that explain it.
The Planetesimal Theory by the Geologist Thomas C. Chamberlin (1843-1928) and the Astronomer Forest R. Moulton (1872-1952) explains that the formation of the solar system was caused by another large celestial body that passed quite close to the sun at the beginning of the formation of the sun. As a result, two spiral arms are formed that extend to the sun.
Both pull some material into the sun’s orbit. Over time these objects will cool and solidify into small objects known as planetisimals. There is also a future planet that has the title proto planet.
In addition to this theory, there is also a theory that is more commonly known as the Bing Bag theory as the result of the thinking of Robert Grosseteste. According to Grosseteste the universe was created from a big explosion. Where the crystallization of the material to form stars and planets in a very long period of time.
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5. How wide is the solar system?
unsplash / Guillermo Ferla—
Have you ever wondered how wide the solar system is? The answer turned out to be very broad. Don’t go far, the distance from the earth to the sun is already far, about 150 million km.
The sun takes about 8 minutes 20 seconds to reach the earth. Though the speed of light is the fastest in the universe, about 300,000 km per second in a vacuum.
The distance from Earth to the planet Neptune (the farthest planet in the solar system) is even greater than that, at 4,500 million km. or the equivalent of 0.00045 light years. With 1 light year equivalent to 9,467,280,000,000 km, that’s a long way.
Because of the vastness of the universe, we cannot know what is in it. Even the star whose light you see in the sun is light that travels several years to become visible on earth.
The solar system is vast and full, isn’t it? No wonder the solar system is capable of growing millions of stars in it.
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