Amalthea
E646436
Amalthea is a small, irregularly shaped inner moon of Jupiter known for its reddish color and porous, low-density composition.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Amalthea gossamer ring | 1 |
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
moon of Jupiter
ⓘ
natural satellite ⓘ |
| albedo | low ⓘ |
| belongsToGroup | Amalthea group of moons NERFINISHED ⓘ |
| belongsToPlanetarySystem | Jovian system NERFINISHED ⓘ |
| catalogDesignation | Jupiter V NERFINISHED ⓘ |
| celestialBodyType | inner moon ⓘ |
| color | reddish ⓘ |
| contributesTo | Jupiter's gossamer rings NERFINISHED ⓘ |
| density_g_per_cm3 | ~0.86 ⓘ |
| dimensions_km | 250 × 146 × 128 ⓘ |
| discoveredBy | Edward Emerson Barnard NERFINISHED ⓘ |
| discoveryDate | 1892-09-09 ⓘ |
| discoveryMethod | telescopic observation ⓘ |
| escapeVelocity_km_per_s | ~0.058 ⓘ |
| exploredBy |
Galileo spacecraft
NERFINISHED
ⓘ
Voyager 1 NERFINISHED ⓘ Voyager 2 NERFINISHED ⓘ |
| hasNo | substantial atmosphere ⓘ |
| inclination_degrees | ~0.37 to Jupiter's equator ⓘ |
| largestCrater |
Gaea crater
NERFINISHED
ⓘ
Pan crater NERFINISHED ⓘ |
| location | within Jupiter's faint ring system ⓘ |
| meanRadius_km | ~83 ⓘ |
| meanSurfaceGravity_m_per_s2 | ~0.02 ⓘ |
| namedAfter | Amalthea (nymph in Greek mythology) NERFINISHED ⓘ |
| observedInDetailBy | Galileo orbiter NERFINISHED ⓘ |
| orbitalEccentricity | ~0.003 ⓘ |
| orbitalPeriod_days | ~0.498 ⓘ |
| orbits | Jupiter NERFINISHED ⓘ |
| parentPlanet | Jupiter NERFINISHED ⓘ |
| porosity | high ⓘ |
| relativePosition | one of the inner Galilean-region moons ⓘ |
| rotation | synchronous with its orbital period ⓘ |
| semiMajorAxis_km | ~181000 ⓘ |
| shape | irregular ⓘ |
| spectralType | reddened, non-icy spectrum ⓘ |
| surfaceComposition | porous, icy and rocky material ⓘ |
| surfaceFeature |
grooves
ⓘ
large impact craters ⓘ ridges ⓘ |
| surfaceMaterial | sulfur-rich material from Io ⓘ |
| surfaceTemperature_K | ~120 ⓘ |
| tidalLock | Jupiter NERFINISHED ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Amalthea gossamer ring