The eighth planet from the sun, having a sidereal period of revolution around the sun of 164.8 years at a mean distance of 4.5 billion kilometers (2.8 billion miles), a mean equatorial diameter of 49,528 kilometers (30,775 miles), and a mass 17.25 times that of Earth.
In 2006, the IAU officially downgraded Pluto and took away Pluto's planetary title and status. Instead, Pluto was labeled a dwarf planet.
It has clouds of ammonia crystals. The temperature in the cloud tops of Jupiter is 230 degrees Fahrenheit.
Saturn has a very strong magnetic field.
Its orbit takes 30,685 Earth days, which is a bit more than 84 years.
Find another word for outer-planet. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for outer-planet, like: jovian-planet, superior-planet, inner-planet, neptune, pluto, jupiter, saturn and uranus.