Solar system is a system between celestial bodies consisting of the sun as its center and also the celestial bodies that surround it such as the planets. What’s in the solar system?
Quoted from the Kemendikbud page, it is not only planets that revolve around the sun and form an order in it. There are also other celestial bodies such as the moon, satellites, comets, meteoroids, asteroids, dwarf planets and others.
Just as the Earth revolves around the Sun, the solar system we live in also orbits at the center of the Milky Way Galaxy or the Milky Way. Our solar system is in the Orion arm or Orion path, which is at the edge of the Milky Way Galaxy along with a collection of stars, dust, gas, and other solar systems.
Furthermore, let’s get to know more about our solar system, which is reported from the following page of the National Aeronautics and Space Administration (NASA).
7 Facts of the Solar System You May Not Know
1. Consists of Billions of Celestial Bodies
The solar system consists of billions of stars, eight planets, and many small celestial bodies such as dwarf planets, asteroids, and comets. Apart from Earth, the planets in the Milky Way Galaxy are Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune.
2. Being at the Edge of the Galaxy
Our solar system orbits or orbits the center of the Milky Way Galaxy at a speed of 515,000 mph or about 230.23 meters per second. The reason is, according to NASA’s Imagine the Universe page, our solar system is approximately 25,000 light years from the center of the galaxy or in other words, it is far at the end of the galaxy.
3. It Takes Millions of Years for 1 Rotation
How long does it take for our solar system to orbit one center of the Milky Way Galaxy? The answer is 230 million years!
4. Spiral Shaped
Generally, there are three types of elliptical, spiral, and irregular galaxies. The Milky Way is a spiral galaxy.
5. No Atmosphere
Solar system just a space without an atmosphere. However, it has many planets, including Earth, which has various types of atmospheres in it.
6. We Live Alone?
Until now, our solar system is called the only solar system that has life. Furthermore, Earth is the only planet that has such life.
7. No Humans Have Been Exploring Outside the Solar System
NASA’s Voyager 1 and Voyager 2 spacecraft are the only representatives from Earth to successfully leave the solar system. The other three spacecraft, Pioneer 10, Pioneer 11, and New Horizons, are about to launch.
That’s 7 facts about solar system. What other facts do you know about our solar system?
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