Planets, satellites (moons), asteroids, comets and meteors are the constituents of the solar system. The outer regions have not yet taken part in hydrogen burning. Asteroids range in size from Ceres, which has a diameter of about 1000 km, down to the size of pebbles. The black spots formed because the craters exposed cleaner material beneath the dusty surface. Five years after the appearance of the great supernova of 1604, Galileo built his first telescope. So far, forty nine satellites have been discovered in the solar system. Pluto is usually farther from the Sun then any of the nine planets. They have been found inside Earth’s orbit to beyond Saturn’s orbit. The Solar System is made up of all the planets that orbit our Sun. Jupiter is named after the king of the Roman gods. Comets are small, fragile, irregularly shaped bodies composed of a mixture of non-volatile grains and frozen gases. The Earth, the third planet (rock) from the Sun, is the largest of the inner planets and also has the highest density. Its orbit is gravitationally locked with Pluto, so both bodies always keep the same hemisphere facing each other. There are a number of stars in the sky. Neptune was the last planet until recently, when Pluto past it with its orbit and became the last planet again. The Earth’s rotation period is not constant. Before publishing your Article on this site, please read the following pages: 1. Asteroids are material left over from the formation of the solar system. Jupiter has a magnetic field 20,000 times stronger than that of the Earth’s, having a devastating effect on its moons. The unusual axial tilt may have been caused by a collision by a large body early in Uranus’ life. Here is your essay on Solar System ! It is the largest planet in the Solar System, the fifth planet from the Sun and the first of the outer planets Jupiter has had a dominant effect on a large part of the Solar System. The sun is the most important star for us. of the heavens. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. Privacy Policy3. Various improvements have been seen in the study of the Solar system over the past few centuries. 5. The craters and basins in the highlands are formed by meteorite. Space is a big place with a lot to explore. Have you ever looked at the stars at night and wondered about what’s up there? 4. Disclaimer Copyright. They are an unlimited source of energy for us. Nicolaus Copernicus, in 1543, published his hypothesis that the Sun is the center of the universe but since the teaching of Aristotle had been adopted by the church his view was seen as unbelievable. 2. Most, however, are contained within a main belt that exists between the orbits of Mars and Jupiter. It is the second planet from the Sun and the brightest object in the sky other than the Sun and the Moort. One theory suggests that they are the remains of a planet that was destroyed in a massive collision long ago. We live in a spiral galaxy known as the Milky Way. About 1.3 billion earths would fit inside the sun. Share Your Essays.com is the home of thousands of essays published by experts like you! This will mark the end of the Sun's main-sequence life. This suggests that 65 to 70 percent of Mercury’s weight is made up of a heavy material, probably iron. Conditions may have been better in the past. However, in 2006, the IAU had decided to re-categorize Pluto as a “Dwaft planet” and not a real planet. Solar system refers to the eight planets and their natural satellites (such as moon) that revolves around the sun in their orbit.. 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