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Two of Neptune's narrow rings are visible as arches above the crescent planet. The inner ring, LeVerrier, is uniform but the outer ring, Adams, contains three visible arcs. The arcs are designated, from bottom to top, Liberte, Egalite and Fraternite.
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pds-rings.seti.org/neptune/voyager/c1141251.html
pds-rings.seti.org/neptune/voyager/c1141251.html
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Neptune's rings were first detected in star occultation experiments from Earth in 1983, but they were very difficult to study before the data from Voyager 2. The following image (Ref) shows the faint rings of Neptune (the light from the body of the planet is blocked off in the black region to allow the rings to be...
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csep10.phys.utk.edu/astr161/lect/neptune/rings.html
csep10.phys.utk.edu/astr161/lect/neptune/rings.html
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Like Uranus’ rings, Neptune’s were first detected in stellar occultation observations from Earth. But Neptune’s rings appeared in some observations and not in others, so it was thought that the rings were incomplete arcs. ... Voyager 2 snapped two long-exposure images of Neptune's rings as it receded from the planet.
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www.planetary.org/explore/topics/neptune/rings.html
www.planetary.org/explore/topics/neptune/rings.html
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As Voyager 2 approached Neptune, scientists had been working on theories of how partial rings, or "ring arcs," could exist. Most settled for the concept of shepherding satellites that "herd" ring particles between them, keeping the particles from either escaping ... Neptune's rings (Click on the image for a larger view)
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voyager.jpl.nasa.gov/science/neptune_rings.html
voyager.jpl.nasa.gov/science/neptune_rings.html
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Voyager 2 wide-angle view of the Leverrier and Adams rings of Neptune. The inner Leverrier ring has a radius of 53,300 km and the outer Adams ring 62,932. The ring arcs are visible in the lower part of the Adams ring.
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nssdc.gsfc.nasa.gov/imgcat/html/object_page/vg2_1135023...
nssdc.gsfc.nasa.gov/imgcat/html/object_page/vg2_1135023.html
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This portion of Neptune's Adams ring appears to be twisted. Scientists believe it looks this way because the original material in the rings was in clumps that formed streaks as the material orbited Neptune. The motion of the spacecraft added to the twisted appearance by causing a slight smearing in the image.
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pds.jpl.nasa.gov/planets/captions/neptune/twisted.htm
pds.jpl.nasa.gov/planets/captions/neptune/twisted.htm
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Voyager found four rings and evidence of ring arcs or incomplete rings. The “Main Ring” orbits Neptune at about 23,812.5 mi (38,100 km) above the cloud tops. The “Inner Ring” is about 17,750 mi (28,400 km) from Neptune's cloud tops. ... More on Neptune's Rings from Infoplease:
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www.infoplease.com/ipa/A0004497.html
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Neptune's Rings. Neptune is the eighth planet from the sun in our solar system. ... Introduction to Neptune Inside Neptune Neptune's Rings Neptune's Atmosphere and the Great Dark Spot Neptune's Moons Activities, Web Links...
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www.enchantedlearning.com/subjects/astronomy/planets/ne...
www.enchantedlearning.com/subjects/astronomy/planets/neptune/neptunerings.shtml
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