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

   nssdc.gsfc.nasa.gov › planetary › factsheet

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   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. ...

   • Neptunian Satellite Fact Sheet

     Neptune Fact Sheet Neptune Home Page Notes on the Factsheets...

   • Neptunian Rings Fact Sheet

     Neptune Fact Sheet Neptune Home Page Notes on the Factsheets...

   • Notes on the Factsheets

     Every effort has been made to present the most up-to-date...

   • Planetary Fact Sheets

     Author/Curator: Dr. David R. Williams,...

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

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   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.

3. nineplanets.org › kids › neptuneNeptune Facts for Kids | Temperature, Surface & Information

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   Key Facts & Summary. Neptune is the farthest planet from the Sun at an average distance of 4.5 billion kilometers / 2.8 billion miles. Neptune is the fourth-largest planet in the Solar System and the smallest of the gas giants. Both Neptune and Uranus are termed ice giants since they have different compositions than Saturn and Jupiter.

4. spaceplace.nasa.gov › all-about-neptune › enAll About Neptune | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov › all-about-neptune › en

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   11 paź 2024 · All About Neptune. Neptune is dark, cold, and very windy. It's the last of the planets in our solar system. It's more than 30 times as far from the sun as Earth is. Neptune is very similar to Uranus. It's made of a thick fog of water, ammonia, and methane over an Earth-sized solid center.

5. www.esa.int › kids › enESA - Space for Kids - Neptune - European Space Agency

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   19 sty 2006 · Neptune turned out to be almost an identical twin of Uranus. It is 57 times bigger than the Earth, but spins quite rapidly – one day lasts only 16 hours 7 minutes. Its average distance from the Sun is about 4,500 million km, and one year on Neptune lasts for almost 165 Earth years.

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

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   13 paź 2024 · Neptune, third most massive planet in the solar system and the eighth and outermost planet from the Sun. Neptune has 14 moons, only two of which were discovered before Voyager 2’s visit in 1989, and a system of rings, which were unconfirmed before Voyager.

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

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   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.