The outermost known planet, an ice giant with the fastest winds in the solar system, reaching over 2,000 kilometers per hour. Neptune is notable as the first planet located by mathematical prediction, from irregularities in Uranus's orbit, before it was directly observed.
Facts
Diameter (km) Orbital Distance30.1 AU (about 4.50 billion km) from the Sun 1 Discovery Year Connections
Associated With
Made the only close flyby of Neptune, in August 1989.
Source NASA Solar System Exploration
Orbited By
Source NASA Solar System Exploration
Sources
1. NASA Solar System Exploration
National Aeronautics and Space AdministrationEntity description, neptune catalogue classification
The outermost known planet, an ice giant with the fastest winds in the solar system, reaching over 2,000 kilometers per hour.
- Associated With: Voyager 2
- Orbited By: Triton, science.nasa.gov, Neptune Moons: Triton
View the Source 2. Encyclopedia Britannica: Space Exploration
Wikipedia (space and spaceflight articles)
Wikimedia FoundationNeptune, Wikipedia - name section
In Roman mythology, Neptune was the god of the sea, identified with the Greek Poseidon.
Neptune, Wikipedia - lead section
Neptune, like Uranus, is an ice giant, a subclass of giant planet, because they are smaller and have higher concentrations of volatiles than Jupiter and Saturn.
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