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  1. nssdc.gsfc.nasa.gov › planetary › factsheetNeptune Fact Sheet - NSSDCA

    3 paź 2024 · Neptune Observational Parameters Discoverer: Johann Gottfried Galle (based on predictions by John Couch Adams and Urbain Leverrier) Discovery Date: 23 September 1846 Distance from Earth Minimum (10 6 km) 4319.0 Maximum (10 6 km) 4711.0 Apparent diameter from Earth Maximum (seconds of arc) 2.4 Minimum (seconds of arc) 2.2 Mean values at opposition from Earth Distance from Earth (10 6 km) 4348. ...

  2. science.nasa.gov › neptuneNeptune - NASA Science

    Dark, cold and whipped by supersonic winds, giant Neptune is the eighth and most distant major planet orbiting our Sun. More than 30 times as far from the Sun as Earth, Neptune is not visible to the naked eye.

  3. science.nasa.gov › neptune › neptune-factsNeptune Facts - Science@NASA

    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.

  4. solarsystem.nasa.gov › planets › neptuneIn Depth | Neptune – NASA Solar System Exploration

    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.

  5. www.rmg.co.uk › sites › defaultNeptune - Royal Museums Greenwich

    Neptune N eptune is the most distant planet in the Solar System. Like Jupiter, Saturn and Uranus it is a gas giant planet with no solid surface to walk on. Neptune has the strongest winds in the Solar System capable of blowing almost ten times faster than the fastest cars we have on Earth. While the storms on Neptune may not be as

  6. www.britannica.com › place › Neptune-planetNeptune | Planet, Moons, Rings, Temperature, Mass, Diameter, &...

    13 paź 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 ♆.

  7. www.nationalgeographic.com › science › articleNeptune facts and information - National Geographic

    28 mar 2019 · Neptune is the windiest planet in our solar system, whipping up momentous gusts that can reach more than 1,200 miles an hour. That soothing sapphire expanse does reveal some of the whirling chaos...