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- Rings_of_Neptune abstract "The rings of Neptune consist primarily of five principal rings and were first discovered (as "arcs") in 1984 in Chile by Patrice Bouchet, Reinhold Häfner and Jean Manfroid at La Silla Observatory (ESO) during an observing program proposed by André Brahic and Bruno Sicardy from Paris Observatory, and at Cerro Tololo Interamerican Observatory by F. Vilas and L.-R. Elicer for a program led by Williams Hubbard. They were eventually imaged in 1989 by the Voyager 2 spacecraft. At their densest, they are comparable to the less dense portions of Saturn's main rings such as the C ring and the Cassini Division, but much of Neptune's ring system is quite tenuous, faint and dusty, more closely resembling the rings of Jupiter. Neptune's rings are named after astronomers who contributed important work on the planet: Galle, Le Verrier, Lassell, Arago, and Adams. Neptune also has a faint unnamed ring coincident with the orbit of the moon Galatea. Three other moons orbit between the rings: Naiad, Thalassa and Despina.The rings of Neptune are made of extremely dark material, likely organic compounds processed by radiation, similar to that found in the rings of Uranus. The proportion of dust in the rings (between 20% and 70%) is high, while their optical depth is low to moderate, at less than 0.1. Uniquely, the Adams ring includes five distinct arcs, named Fraternité, Égalité 1 and 2, Liberté, and Courage. The arcs occupy a narrow range of orbital longitudes and are remarkably stable, having changed only slightly since their initial detection in 1980. How the arcs are stabilized is still under debate. However, their stability is probably related to the resonant interaction between the Adams ring and its inner shepherd moon, Galatea.".
- Rings_of_Neptune thumbnail Neptunian_rings_scheme_2.svg?width=300.
- Rings_of_Neptune wikiPageExternalLink append8.html.
- Rings_of_Neptune wikiPageExternalLink solarsystem.nasa.gov.
- Rings_of_Neptune wikiPageExternalLink profile.cfm?Object=Neptune&Display=Rings.
- Rings_of_Neptune wikiPageID "979237".
- Rings_of_Neptune wikiPageRevisionID "601538264".
- Rings_of_Neptune colwidth "30".
- Rings_of_Neptune group "lower-alpha".
- Rings_of_Neptune hasPhotoCollection Rings_of_Neptune.
- Rings_of_Neptune name "footnoteB".
- Rings_of_Neptune theEquivalentDepthEdOfARingIsDefinedAsAnIntegralOfTheNormalOpticalDepthAcrossTheRing.InOtherWords%3Cnowiki%3Eed "∫τdr, where r is radius.".
- Rings_of_Neptune subject Category:Astronomical_objects_discovered_in_1989.
- Rings_of_Neptune subject Category:Neptune.
- Rings_of_Neptune subject Category:Planetary_rings.
- Rings_of_Neptune type Abstraction100002137.
- Rings_of_Neptune type Attribute100024264.
- Rings_of_Neptune type PlanetaryRings.
- Rings_of_Neptune type Property104916342.
- Rings_of_Neptune type Ring104981658.
- Rings_of_Neptune type Sound104981139.
- Rings_of_Neptune type SoundProperty104983122.
- Rings_of_Neptune comment "The rings of Neptune consist primarily of five principal rings and were first discovered (as "arcs") in 1984 in Chile by Patrice Bouchet, Reinhold Häfner and Jean Manfroid at La Silla Observatory (ESO) during an observing program proposed by André Brahic and Bruno Sicardy from Paris Observatory, and at Cerro Tololo Interamerican Observatory by F. Vilas and L.-R. Elicer for a program led by Williams Hubbard. They were eventually imaged in 1989 by the Voyager 2 spacecraft.".
- Rings_of_Neptune label "Anelli di Nettuno".
- Rings_of_Neptune label "Anillos de Neptuno".
- Rings_of_Neptune label "Anneaux de Neptune".
- Rings_of_Neptune label "Anéis de Netuno".
- Rings_of_Neptune label "Pierścienie Neptuna".
- Rings_of_Neptune label "Rings of Neptune".
- Rings_of_Neptune label "Кольца Нептуна".
- Rings_of_Neptune label "حلقات نبتون".
- Rings_of_Neptune label "海王星の環".
- Rings_of_Neptune label "海王星環".
- Rings_of_Neptune sameAs Prstence_Neptunu.
- Rings_of_Neptune sameAs Δακτύλιοι_του_Ποσειδώνα.
- Rings_of_Neptune sameAs Anillos_de_Neptuno.
- Rings_of_Neptune sameAs Anneaux_de_Neptune.
- Rings_of_Neptune sameAs Anelli_di_Nettuno.
- Rings_of_Neptune sameAs 海王星の環.
- Rings_of_Neptune sameAs 해왕성의_고리.
- Rings_of_Neptune sameAs Pierścienie_Neptuna.
- Rings_of_Neptune sameAs Anéis_de_Netuno.
- Rings_of_Neptune sameAs m.03w6yg.
- Rings_of_Neptune sameAs Q48400.
- Rings_of_Neptune sameAs Q48400.
- Rings_of_Neptune sameAs Rings_of_Neptune.
- Rings_of_Neptune wasDerivedFrom Rings_of_Neptune?oldid=601538264.
- Rings_of_Neptune depiction Neptunian_rings_scheme_2.svg.
- Rings_of_Neptune isPrimaryTopicOf Rings_of_Neptune.
