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N e p t u n e

N e p t u n e. Takumi Kuroyanagi. The zoom up of Great Dark spot . Also taken by Voyager 2 . Picture of Neptune . Taken by Voyager 2 On 2000-02-16. H i s t o r y. Discovery On 1613 , Galileo Galilei saw Neptune by telescope .

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N e p t u n e

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  1. Neptune Takumi Kuroyanagi The zoom up of Great Dark spot. Also taken by Voyager 2. Picture of Neptune. Taken by Voyager 2 On 2000-02-16

  2. History Discovery On 1613, Galileo Galilei saw Neptune by telescope. After discovered Uranus, astronauts were having trouble figuring out the orbit. They thought there is another planet further away than Uranus. French astronomer Liverier and English astronomer John Couch Adams guessed the math calculations of where Neptune must be. Then Johann Galle observed. Neptune: Roman Sea god Johann Galle Trident

  3. SolarSystem Order: 8th from the sun Distance from the Sun in AU*: 30.06 In km: 4,496,976,000 km Distance from the Earth in AU: 29.06 In km: 4,347,376,000 km *AU: Astronomical Unit Orbital period (how long is one trip around the sun?) [ year]: About 60225 days / 165 years Rotation [day]: 16 Earth hours

  4. Planet Measurements Metric: M Scientific notation: S.N Mass:M: 102,440,000,000,000,000,000,000,000 kg S.N: 1.0244 x 1026 kg 17.147 x Earth`s Volume:M: 62,526,000,000,000 km3 S.N: 6.2526 x 1013 km3 57.7 x Earth`s Equatorial Circumference: M: 155,597 km S.N: 1.55597 x 105 km Mean Density: M: 1.76g / cm3 0.317 x Earth’s Gravity: M: 10.71m / s2 If you weighed 100 lbs on Earth, you would weigh on Neptune: 112.5 lbs

  5. CompositionandAtmosphere Atmosphere: Hydrogen Helium Methane Ammonia Argon Core, Mantle: Rock 800km of water Ammonia ice Core is about the size of Earth!!

  6. SurfaceConditions Surface temperature: -214 0C -353 0F S.N: 59K Wind Speed: 700 miles (1,100 km) / hour The Great Dark Spot In 1989, Voyager2 spacecraft found that Neptune had a dark area made up of lots of gas making up like a hurricane. This, called “Great Dark Spot” was similar to the “Great Red Spot” On Jupiter. But in 1994, the Hubble Space Telescope found that the Great Dark spot had Vanished.

  7. Moons 1. Triton2. Nereid3. Naiad4. Thalassa5. Despina6. Galatea7. Larissa8. Proteus9. Halimede10. Psamathe11. Sao12. Laomedeia13. Neso

  8. Triton This moon, Triton is very intresting because it`s not only that it`s biggest moon, it is the only moon in the solar system that circles in a direction opposite to the planet`s rotation!! PIA02234: Triton

  9. Rings Ring Name: 1989 N3R GalleDistance*: 41,900 kmWidth: 15 kmAlbedo: Low Ring Name: 1989 N2R LeverrierDistance*: 53,200 kmWidth: 15 kmAlbedo: Low Ring Name: LassellDistance*: 55,400 kmWidth: - kmAlbedo: Low Ring Name: AragoDistance*: 57,600 kmWidth: - kmAlbedo: Low Ring Name: 1989 N1R AdamsDistance*: 57,600 kmWidth: - km Ring Name: Liberte ("Leading" Adams arc)Distance*: 62,930 kmWidth: < 50 kmAlbedo: LowRing Name: Egalite ("Equidistant" Adams arc)Distance*: 62,900 kmWidth: - kmRing Name: Fraternite ("Following" Adams arc)Distance*: 62,900 kmRing Name: Courage (arc)Distance*: 62,900 kmWidth: - km* The distance is measured from the planet center to the start of the ring. This Voyager image, FDS 11412.51, shows the three main arcs in Neptune's Adams Ring

  10. Exploration Space Craft: Voyager 2 Country: USA Launch date: August 20, 1977 Arrival Date: August 24, 1989 visit the four giant outer planets Jupiter, Saturn, Uranus, and Neptune,

  11. Bibliography http://photojournal.jpl.nasa.gov/catalog/PIA02234 http://solarsystem.nasa.gov/planets/profile.cfm?Object=Neptune&Display=Facts&System=Metric Science book http://www.enchantedlearning.com/subjects/astronomy/ http://solarsystem.nasa.gov/planets/profile.cfm?Object=Neptune&Display= Facts&System=Metric http://www.enchantedlearning.com/subjects/astronomy http://www.windows.ucar.edu/tour/link=/neptune/discover.html&edu=high http://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=167 • http://photojournal.jpl.nasa.gov/ • targetFamily/Neptune http://solarsystem.nasa.gov/planets/profile.cfm?Object=Neptune&Display=Rings

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