The term "solar system" refers to the sun and all the bodies that are caught in its gravitational field. This includes the eight planets, several dwarf planets, the moons and a variety of asteroids and comets.Know More
The eight planets of the solar system in order of their distance to the sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. The three largest dwarf planets include Pluto, Eris and Ceres.
Pluto was originally classified as a ninth planet, but this changed in 2006 when the International Astronomical Union (IAU) stopped recognizing Pluto as a planet and downgraded it to a dwarf planet.Learn more about Astronomy
Our solar system is referred to simply as the Solar System. That is its name because it is a heliocentric model in which all planets in the system revolve about the sun.Full Answer >
According to NASA, astronomers have discovered at least 146 moons orbiting planets in Earth's solar system. As of 2014, 27 more moons await official confirmation of their discovery. This total does not include the six moons of the dwarf planets or tiny satellites that orbit asteroids and other celestial objects.Full Answer >
The geocentric, or Ptolemaic, model of the solar system is the astronomical model advanced by ancient people to describe the motions of the planets, Sun and moon. This model held that the Earth was the center of the solar system, and the other heavenly bodies orbited around it. Scientists now know that this model is incorrect and that the Sun is at the center of the solar system.Full Answer >
The formation of the solar system began with the creation of the sun after an exploding supernova caused spherical accumulation of dust particles and gas in a huge swirling cloud called nebula. Planets and other components of the solar system formed in the flat plane of the rotating disc of dust.Full Answer >