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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

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

   • Neptune Home Page

     Reference Books on Neptune; Missions to Neptune. Voyager 2 -...

   • Notes on the Factsheets

     Most values listed in the factsheets are from the following...

   • Planetary Fact Sheets

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

2. www.science-reference.com › astronomy › solar-systemNeptune - Science Reference

   www.science-reference.com › astronomy › solar-system

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   Neptune. Properties: Mass: 1.024 * 1026 kg. Mean Radius: 24,622 km. Semi-major Axis: 30.07 AU. Orbital Period: 164.8 years. Rotational Period: 16 h 6 m 36 s. Surface Gravity: 11.15 m/ (s2) Etymology: Neptune (Roman God of the Sea) Neptune is the 8th and final planet from the Sun in our Solar System.

3. solarsystem.nasa.gov › neptune-by-the-numbersNeptune By the Numbers – NASA Solar System Exploration

   solarsystem.nasa.gov › neptune-by-the-numbers

   16 maj 2024 · Neptune is the eighth and most distant planet from the Sun. It’s the fourth largest, and the first planet discovered with math.

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

   www.britannica.com › place › Neptune-planet

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   6 dni temu · Neptune is the only giant planet that is not visible without a telescope. It has an apparent magnitude of 7.8 and is approximately one-fifth as bright as the faintest stars visible to the unaided eye. Hence, there were no observations of Neptune before the use of telescopes.

5. www.universetoday.com › 21639 › gravity-on-neptuneGravity on Neptune - Universe Today

   www.universetoday.com › 21639 › gravity-on-neptune

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   28 lis 2008 · The surface gravity of Neptune is 1.14 times the gravity on Earth. In other words, if you could actually walk on Neptune, you would feel only a little heavier than if you were walking on...

6. phys.org › news › 2016-01-strong-gravity-planetsHow strong is gravity on other planets? - Phys.org

   phys.org › news › 2016-01-strong-gravity-planets

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   1 sty 2016 · Gravity on Neptune: With a mean radius of 24,622 ± 19 km and a mass of 1.0243×10 26 kg, Neptune is the fourth largest planet in the solar system. All told, it is 3.86 times the size of Earth...

7. www.go-astronomy.com › planets › planet-neptunePlanet Neptune | Facts, Images, Atmosphere | GO ASTRONOMY

   www.go-astronomy.com › planets › planet-neptune

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   Neptune has 14 known moons. Triton is the largest moon and is actually a dwarf planet captured by Neptune's gravity. Neptune's ring shepherd moons are Despina (Le Verrier Ring) and Galatea (Adams Ring).