- Neptune - Wikipedia
Neptune orbits the Sun once every 164 8 years at an orbital distance of 30 1 astronomical units (4 5 billion kilometres; 2 8 billion miles) It is named after the Roman god of the sea and has the astronomical symbol, representing Neptune's trident [e]
- Neptune - Science@NASA
Neptune is the eighth, and most distant planet from the Sun It’s the fourth-largest, and the first planet discovered with math More than 30 times as far from the Sun as is Earth, Neptune is not visible to the naked eye Neptune was the first planet located using math
- Neptune | Planet, Moons, Rings, Temperature, Mass, Diameter, Facts . . .
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 ♆
- All About Neptune | NASA Space Place – NASA Science for Kids
Neptune is very similar to Uranus It's made of a thick fog of water, ammonia, and methane over an Earth-sized solid center Its atmosphere is made of hydrogen, helium, and methane The methane gives Neptune the same blue color as Uranus Neptune has six rings, but they're very hard to see Explore Neptune! Click and drag to rotate the planet
- Neptune, planet of wind and ice - The Planetary Society
Neptune is our outermost planet Neptune has been visited by only one spacecraft: Voyager 2 The majority of worlds we’ve found around other stars are Neptune-sized By studying Neptune we learn about other solar systems and whether or not ours is unique
- Neptune planet - Canadian Space Agency
As our solar system took shape about 4 5 billion years ago, Neptune was likely formed in a massive, ancient cloud of gas, dust, and ice which collapsed into a spinning disc with our Sun at its centre
- Neptune: The Farthest Planet - timeanddate. com
Neptune is the eighth planet from the Sun and the farthest known planet in the solar system It lies on the inside edge of the Kuiper Belt, a large and rocky region of the solar system that contains the dwarf planets Pluto, Haumea, Makemake, and Eris
- Neptune Fact Sheet - NSSDCA
Surface Pressure: >>1000 bars Temperature at 1 bar: 72 K (-201 C) Temperature at 0 1 bar: 55 K (-218 C) Density at 1 bar: 0 45 kg m 3 Wind speeds: 0-580 m s Scale height: 19 1 - 20 3 km Mean molecular weight: 2 53 - 2 69 Atmospheric composition (by volume, uncertainty in parentheses) Major: Molecular hydrogen (H 2) - 80 0% (3 2%); Helium (He) -
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