Neptune
E21590
Neptune is the eighth and farthest known major planet from the Sun, a cold, blue ice giant characterized by strong winds and a dynamic atmosphere.
All labels observed (10)
| Label | Occurrences |
|---|---|
| Neptune canonical | 70 |
| Nettuno | 2 |
| Neptune (by prediction of its position) | 1 |
| Neptune (gravitationally) | 1 |
| Neptune (via Urbain Le Verrier) | 1 |
| Neptunian system | 1 |
| Orbit of Neptune | 1 |
| astrological planet Neptune | 1 |
| outer planet Neptune | 1 |
| planet Neptune | 1 |
Statements (61)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
gas giant planet ⓘ ice giant ⓘ outer planet ⓘ planet ⓘ |
| albedo | about 0.29 ⓘ |
| atmosphericComposition |
helium
ⓘ
hydrogen ⓘ methane ⓘ |
| atmosphericFeature |
dynamic atmosphere
ⓘ
large storms ⓘ strong winds ⓘ |
| axialTilt | about 28.3 degrees ⓘ |
| belongsTo | Solar System ⓘ |
| colorDescription | blue ⓘ |
| discoveredBy |
Johann Galle
ⓘ
Urbain Le Verrier ⓘ |
| discoveryDate | 1846-09-23 ⓘ |
| discoveryMethod | mathematical prediction ⓘ |
| distanceFromSun_km | about 4.5 billion kilometers ⓘ |
| distanceFromSun_mean | about 30.1 astronomical units ⓘ |
| equatorialDiameter | about 49,244 kilometers ⓘ |
| equatorialGravity | about 11.15 m/s² ⓘ |
| escapeVelocity | about 23.5 km/s ⓘ |
| exploredBy |
Voyager 2
ⓘ
surface form:
Voyager 2 spacecraft
|
| flybyDate_Voyager2 | 1989-08-25 ⓘ |
| hasMagneticField | true ⓘ |
| hasRingSystem | true ⓘ |
| internalStructure |
mantle of water ammonia and methane ices
ⓘ
outer envelope of hydrogen and helium ⓘ rocky core ⓘ |
| largestMoon | Triton ⓘ |
| magneticFieldCharacteristic |
offset from planetary center
ⓘ
tilted relative to rotation axis ⓘ |
| mass | about 1.024e26 kilograms ⓘ |
| massRelativeToEarth | about 17.1 Earth masses ⓘ |
| meanDensity | about 1.64 g/cm³ ⓘ |
| meanRadius | about 24,622 kilometers ⓘ |
| moon |
Despina
ⓘ
Galatea ⓘ Larissa ⓘ Naiad ⓘ Arethusa ⓘ
surface form:
Nereid
Proteus ⓘ Thalassa ⓘ Triton ⓘ |
| namedAfter | Roman god of the sea ⓘ |
| notableStorm | Great Dark Spot ⓘ |
| numberOfKnownMoons | 14 ⓘ |
| orbitalEccentricity | about 0.009 ⓘ |
| orbitalPeriod | about 164.8 Earth years ⓘ |
| positionInSolarSystem | eighth planet from the Sun ⓘ |
| ringName |
Adams ring
ⓘ
Arago ring ⓘ Galle ring ⓘ Arago ring ⓘ
surface form:
Lassell ring
Adams ring ⓘ
surface form:
Le Verrier ring
|
| rotationPeriod | about 16 hours ⓘ |
| symbol | ♆ ⓘ |
| temperature_upperAtmosphere | about −220 degrees Celsius ⓘ |
| windSpeed_max | about 2,100 km/h ⓘ |
Referenced by (80)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Kuiper Belt object
subject surface form:
Kuiper Belt object
this entity surface form:
Nettuno
this entity surface form:
Nettuno
subject surface form:
Imaging Science System
this entity surface form:
Neptune (gravitationally)
subject surface form:
Pluto
subject surface form:
Proteus (moon)
this entity surface form:
Neptunian system
this entity surface form:
Neptune (by prediction of its position)