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Neptune
Neptune Study Guide
| Question | Answer |
|---|---|
| Johann Galle | The astronomer who first observed Neptune in 1846 using mathematical predictions. |
| Urbain Le Verrier | The French mathematician who calculated Neptune's position based on perturbations in the orbit of Uranus. |
| John Couch Adams | The British mathematician who independently predicted the location of Neptune at the same time as Le Verrier. |
| Triton | The largest moon of Neptune, known for its retrograde orbit and "cantaloupe terrain." |
| Great Dark Spot | A massive anticyclonic storm in Neptune's southern hemisphere first observed by Voyager 2. |
| Scooter | A fast-moving, high-altitude white cloud formation on Neptune that orbits the planet faster than the Great Dark Spot. |
| Adams Ring | The outermost ring of Neptune which contains five prominent arcs. |
| Liberty, Equality, Fraternity | The names of three famous arcs within the Adams Ring, derived from the French national motto. |
| Retrograde Orbit | The "backward" orbital direction of Triton, which suggests it was a captured Kuiper Belt Object. |
| Ice Giant | The classification of Neptune and Uranus due to their high concentration of elements heavier than hydrogen and helium. |
| Fastest Winds | Neptune holds the solar system record for these, with speeds reaching up to 2,100 kilometers per hour. |
| Twotinos | Trans-Neptunian objects that exist in a 1:2 orbital resonance with Neptune. |
| Cubewanos | Classical Kuiper Belt objects that do not have a specific orbital resonance with Neptune. |
| Voyager 2 | The only spacecraft to have ever visited or conducted a flyby of Neptune. |
| Cantaloupe Terrain | The unique, dimpled surface texture found on the moon Triton that resembles the skin of a melon. |