From largest to smallest, based on total circumference, the planets that make up this solar system are Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars and Mercury. Any publication that lists Pluto as a planet is out of date. Astronomers now consider Pluto a dwarf planet.Know More
The smallest four planets, and the dwarf planet Pluto, are the only ones in this solar system known to possess rocky surfaces. Astronomers refer to the larger four planets as gas giants due to their thick, gaseous atmospheres.
In addition to Pluto there are also four other dwarf planets caught in orbits around the sun. These are Ceres, Haumea, Makemake and Eris. The planets and dwarf planets also have their own orbiting bodies. As of 2014 there are 176 identified moons in the solar system.
Jupiter's moon system is the largest, with 63 known moons orbiting the gas giant. Astronomers think Saturn's rings are composed of the remnants from former orbiting moons that collided with one another and eventually formed the particulate discs that form the recognizable rings. Astronomers confirm that outside this solar system, as of 2014 there are 1,523 exo-planets orbiting distant stars, all varying in size, composition and orbital distance from their parent star.Learn more about Planets
There are four planets in the solar system that have rings around them, namely Jupiter, Saturn, Uranus and Neptune. These planets are classified as "jovian" planets, and they are massive balls of gas surrounded by rings and moons. The rings surrounding these gas giants consists of tiny fragments of ice and rock that orbit each planet as if they were miniature moons.Full Answer >
The names of the nine planets in the solar system are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. However, astronomers have reclassified Pluto as a dwarf planet.Full Answer >
Neptune is the coldest planet in the solar system. As the planet furthest away from the Sun, Neptune receives less light than the other planets.Full Answer >
Jupiter is the heaviest planet in the solar system, with a mass of 1.90 x 10^27 kg. The gas giant's mass is equivalent to about 318 Earths. Jupiter is so heavy that it's twice as heavy as all the planets in the solar system combined.Full Answer >