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Learn about Neptune, the eighth and most distant planet from the Sun, with 16 moons and five rings. See how it was discovered, what it looks like, and how it compares to Earth and other planets.
Neptune is one of two ice giants in the outer solar system (the other is Uranus). Most (80% or more) of the planet's mass is made up of a hot dense fluid of "icy" materials – water, methane, and ammonia – above a small, rocky core. Of the giant planets, Neptune is the densest.
Jun 26, 2024 · Neptune, third most massive planet of the solar system and the eighth and outermost planet from the Sun. Because of its great distance from Earth, it cannot be seen with the unaided eye. With a small telescope, it appears as a tiny, faint blue-green disk. It is designated by the symbol ♆.
Dark, cold, and whipped by supersonic winds, ice giant Neptune is the eighth and most distant planet in our solar system. More than 30 times as far from the Sun as Earth, Neptune is the only planet in our solar system not visible to the naked eye. In 2011 Neptune completed its first 165-year orbit since its discovery in 1846.
Neptune is the eighth and farthest planet from the Sun in the Solar System. It is an ice giant, a type of giant planet. Neptune is the fourth-largest planet in the Solar System by size and the third-heaviest. It has a weight 17 times that of Earth, making it heavier but less dense than Uranus.
Jun 13, 2024 · Learn about Neptune, the last and darkest planet in our solar system. Find out how it's similar to Uranus, how long it takes to orbit the sun, and what its rings and moons look like.
Mar 28, 2019 · Learn about the blue planet's orbit, weather, moons, rings, and history in this article. Find out how Neptune was discovered, what makes it so windy and cold, and why it's the only planet that can't be seen without a telescope.
