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The Immense-Solar System
The Immense Solar System
The Solar System
The solar system is the home of an immense number of stellar objects all orbiting around the sun. The solar system extends for approximately seven billion miles across space. Within the solar system, there are eight planets and an infinite quantity of asteroids, comets, and meteorites. It is thought that the solar system is approximately 4.6 biilion years old.
The solar system comprises two distinct solar regions: Mercury, Venus, Earth, and Mars form part of the inner solar system, while Jupiter, Saturn, Uranus, and Neptune form part of the outer solar system. the planets in the inner solar system, also known as the rocky planets are thought to have been condense from heavier elements and are composed principally of rock and metal, while the outer planets, two of which are known as the gas giants (Jupiter and Saturn) are composed of hydrogen and helium; the outermost planets (Uranus and Neptune) are made of ice water, methane, and ammonia. therefore, they are referred as the ice giants.
The asteroid belt is a regoin between Mars and Jupiter occupied by a vast quantity of asteroids which range in size from a few centimeters(meteoroids) to some kilometers in diameter. Ceres is the largest asteroid with sllightly under 1000 km (62miles) in diameter.
The Kuiper Belt
Farther beyond Neptune, which lost its status as the 9th planet in 2006, lies the trans-Neptunian region. This region is inhabited by small objects made of rock and ice, the largest of which has a diameter only one fifth that of the Earth and a mass a little bit less than that of the Moon.
Billions of miles beyond the Sun, there is another region known as the Kuiper belt. This region is home to the majority of the solar system´s comets. It is believed that the Kuiper belt houses more than 100,000 small objects with a diameter over 50 km. further out the Kuiper belt is the Scattered disk populated with small icy objects.
The Heliosphere is thought to be the edge of the solar system. This region is considered as the boundary between the solar and interstellar winds.
All the objects in the solar system orbit around our star (the Sun). The sun contains 99.9 % of the total mass of the solar system; the Jovian planets (Jupiter, Saturn, Uranus, and Neptune) account for the 99 % of the mass which is orbiting around the sun. Distances within the solar system are measured in astronomical units (AU) which is the distance that separates the Sun from earth (149,000,000 km or 93,000,000 miles). Pluto is approximately 40 AU from earth.