Jakarta –
There are eight planets in the solar system, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. The eight planets with other celestial bodies in the solar system revolve around the center of the solar system. Which celestial body is the center? solar system?
The celestial body at the center of the solar system is the sun. All celestial bodies around the sun form a system called the solar system. The solar system is the arrangement of the sun, planets, asteroids, comets, meteors, and space dust.
The Sun as the center of the Solar System
The theory that the sun is the center of the solar system was presented by Nicolaus Copernicus and Galileo Galilei.
However, the sun is not the center of the universe. Because, only all celestial bodies in the solar system revolve around the sun, not all celestial bodies in the universe revolve around the sun, as written in the book Smart Science Class 4-6 SD by Yualind Setyaningtyas.
The sun is a celestial body in the form of a giant glowing ball made of hot gas that rotates in space. Due to its rotational motion, the sun has an equator and a pole.
The diameter of the solar equator is approximately 864,000 miles, while the interpolar lines are shorter than 42 miles. The sun has a mass of about 333,000 times the mass of the earth.
The distance between the sun and the earth is approximately 93,000,000 miles or 148 million km. Distance is expressed in astronomical units (Astronomical units / AU).
The sun is the closest star to the earth.
A star is a celestial object that emits its own light, an example of which is the sun.
Solar power
Solar energy is the energy that comes from nuclear reactions. Nuclear reactions that occur in the sun are fusion reactions or the combination of hydrogen nuclei into helium nuclei.
According to Einstein in Taufiq Hidayat’s book Solar System Science Series, the hydrogen fusion reaction can be formulated in the mathematical equation E = mc²
E = energy
m = mass lost transformed into energy (kg)
c = speed of light
Almost all of the mass of the solar system is in the sun. The sun is a giant furnace where the explosion of the atomic nucleus is extraordinary accompanied by the release of enormous thermal energy.
The temperature in the center of the sun reaches 14,000,000 ° C, even higher. While the temperature on the surface of the sun is much colder, which is around 6,000 ° C. This heat was radiated in all directions into space until it reached the earth’s surface.
Thus an explanation of the solar system is Sun as the center of the solar system. Hope this helps!
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