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Planets of the Solar System: Why They Became Fewer and Other Interesting Facts
Planets of the Solar System: Why They Became Fewer and Other Interesting Facts

Planets of the Solar System: Why They Became Fewer and Other Interesting Facts

Planets of the Solar System: Why They Became Fewer and Other Interesting Facts

The Solar System is a system of planets, with a bright star, the source of energy, heat, and light - the Sun - at its center.

According to one of the theories, the Sun formed together with the Solar System approximately 4.5 billion years ago, as a result of the explosion of one or several supernovae.

Initially, the Solar System was a cloud of gas and dust particles, which, in motion and under the influence of their mass, formed a disk in which a new star, the Sun, and our entire Solar System arose.

At the center of the Solar System is the Sun, around which eight major planets revolve on their orbits. Because the Sun is offset from the center of the planetary orbits, during their cycle around the Sun, the planets approach and move away from it along their orbits.

There are two groups of planets:

1. Terrestrial planets: Mercury, Venus, Earth, and Mars. 
     These are small-sized planets with rocky surfaces, located closest to the Sun.

2. Giant planets: Jupiter, Saturn, Uranus, and Neptune. 
    These are large planets consisting mainly of gas, and they are characterized by the presence of rings made of icy dust and numerous rocky fragments.

However, Pluto does not belong to any group because, despite its presence in the Solar System, it is located too far from the Sun and has a very small diameter, only 2320 km, which is twice smaller than Mercury's diameter.

Previously, Pluto was considered a planet, but later it was reclassified as a dwarf planet. From the time of its discovery (1930) to its "disqualification" (2006), it did not complete a single orbit around the Sun.

The Sun is a giant fiery sphere of very high temperature, consisting of plasma (ionized gas) composed of hydrogen and helium. 
Category: Cosmos and the universe | Added by: Vik (2024-04-19)
Views: 19 | Tags: celestial bodies, Pluto, planets, sun, space exploration, terrestrial planets, astronomy, solar system, gas giants, dwarf planet | Rating: 0.0/0
Total comments: 0
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