The Solar System

(Last edited: Friday, 28 April 2023, 6:09 PM)

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Short Definition:
Solar system is the planetary system consisting of the Sun and other celestial objects which are gravitationally bounded with the Sun, located in an outer spiral arm of the Milky Way galaxy.

Detailed Definition:
The Solar system formed 4.6 billion years ago from the solar nebula. The mass of the Solar system is unevenly distributed. The Sun weights 99,86 % of the all masses in the system. The rest of it falls on the planets, dwarf planets, moons, asteroids etc. The Solar System is divided into 2 parts: the Inner Solar System (Mercury, Venus, Earth, Mars) – terrestrial planets composed of rock and metal and Outer Solar System (Jupiter, Saturn, Uranus, Neptune) – giant planets. The first two are gas giants (composed of hydrogen and helium), and the next two are ice giants (composed of water, ammonia, and methane). Between the inner and outer system is an asteroid belt with Ceres (dwarf planet). It is assumed that the asteroid belt has been created in a collision of a planet and celestial object. Behind the Neptune there is a Kuiper belt – similar to asteroid belt with Pluto, Charon and Eris (dwarf planets).

solar – Latin – solis - Sun
system – Greek – systema - set of entities that interact in an orderly and organized fashion

Sample Sentence(s):
The solar wind emanating from the Sun blasts through the Solar System, interacting with the planets, and pushing material out into interstellar space.

Translations of Terms:

Système solaire


Układ Słoneczny




El sistema solar

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