Fraternité arc
E506472
Fraternité arc is a prominent, dense arc segment within Neptune’s Adams ring, notable for its unusual confinement and brightness compared to the rest of the ring.
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
Neptunian ring feature
ⓘ
planetary ring arc ⓘ |
| belongsToCategory |
Neptune rings
ⓘ
planetary ring structures ⓘ |
| coexistsWith |
Courage arc
ⓘ
Liberté arc ⓘ Égalité arc ⓘ |
| discoveredBy |
Voyager 2 imaging team
NERFINISHED
ⓘ
Voyager 2 spacecraft NERFINISHED ⓘ |
| dynamicallyInfluencedBy | Galatea (Neptune moon) NERFINISHED ⓘ |
| hasAngularExtent | tens of degrees in longitude (approximate) ⓘ |
| hasBrightness | higher than average Adams ring brightness ⓘ |
| hasComposition |
icy ring particles
ⓘ
micrometer-sized dust ⓘ |
| hasDiscoveryContext | Voyager 2 1989 Neptune flyby NERFINISHED ⓘ |
| hasEnvironment | low-temperature outer solar system ⓘ |
| hasNameOrigin | French word for fraternity ⓘ |
| hasNameTheme | French revolutionary motto "Liberté, Égalité, Fraternité" NERFINISHED ⓘ |
| hasOpticalDepth | higher than surrounding Adams ring ⓘ |
| hasOrbitalBody | central body Neptune ⓘ |
| hasOrbitalDirection | prograde around Neptune ⓘ |
| hasProperty |
azimuthally localized
ⓘ
bright ⓘ confined ⓘ dense ⓘ |
| hasScientificInterest |
example of resonant ring structure
ⓘ
tests theories of ring arc confinement ⓘ |
| hasStability | long-lived on decadal timescales ⓘ |
| isNotableFor |
high relative brightness
ⓘ
unusual confinement compared to rest of Adams ring ⓘ |
| isObservedBy |
Hubble Space Telescope
NERFINISHED
ⓘ
ground-based telescopes with adaptive optics ⓘ |
| isOneOf |
Adams ring arcs
ⓘ
Neptune ring arcs ⓘ |
| isPartOf | Neptune’s outer ring system ⓘ |
| isSegmentOf | Adams ring ⓘ |
| locatedIn |
Neptune ring system
ⓘ
outermost Adams ring of Neptune ⓘ |
| maintainedBy | gravitational resonances with Galatea ⓘ |
| orbits | Neptune NERFINISHED ⓘ |
| orbitsAt |
approximately 63,000 km from Neptune’s center
ⓘ
near 2:1 corotation resonance with Galatea ⓘ |
| partOf | Adams ring ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.