|
gptkbp:instanceOf
|
gptkb:concert_hall
gptkb:terrestrial_planet
|
|
gptkbp:albedo
|
0.142
|
|
gptkbp:aphelion
|
69.8 million km
|
|
gptkbp:apparentMagnitude
|
-2.6
|
|
gptkbp:atmosphere
|
gptkb:helium
hydrogen
oxygen
potassium
sodium
very thin, exosphere
|
|
gptkbp:averageSpeed
|
167°C
|
|
gptkbp:axialTilt
|
0.034 degrees
|
|
gptkbp:diameter
|
2,439.7 km
|
|
gptkbp:discoveredBy
|
known since antiquity
|
|
gptkbp:distanceFromEarth
|
4.25 km/s
57.91 million km (average)
|
|
gptkbp:eccentricity
|
0.2056
|
|
gptkbp:firstFlybyYear
|
1974
|
|
gptkbp:firstSpacecraftVisit
|
gptkb:Mariner_10
|
|
gptkbp:hasChineseName
|
水星 (Shuǐxīng)
|
|
gptkbp:hasConcept
|
large iron core
|
|
gptkbp:hasNo
|
natural satellites
rings
|
|
gptkbp:inclination
|
7.00° to ecliptic
|
|
gptkbp:locatedIn
|
gptkb:Solar_System
|
|
gptkbp:magneticFieldStrength
|
yes
1.1% of Earth's
|
|
gptkbp:mass
|
3.3011×10^23 kg
|
|
gptkbp:maximumDistanceToEarth
|
222 million km
|
|
gptkbp:MESSENGERMissionDuration
|
2011–2015
|
|
gptkbp:minimumDistanceToEarth
|
77 million km
|
|
gptkbp:namedAfter
|
gptkb:Mercury_(Roman_god)
|
|
gptkbp:orbitType
|
gptkb:MESSENGER
Sun
87.97 Earth days
|
|
gptkbp:perihelion
|
46.0 million km
|
|
gptkbp:rotationPeriod
|
58.646 Earth days
|
|
gptkbp:surface
|
gptkb:Caloris_Basin
gray
Scarps
Impact craters
Inter-crater plains
Smooth plains
|
|
gptkbp:surfaceGravity
|
3.7 m/s²
|
|
gptkbp:surfaceTemperatureMax
|
427°C
|
|
gptkbp:surfaceTemperatureMin
|
-173°C
|
|
gptkbp:symbol
|
gptkb:☿
|
|
gptkbp:visibleToNakedEye
|
yes
|
|
gptkbp:英文名
|
gptkb:Hermes
|
|
gptkbp:bfsParent
|
gptkb:Budha
gptkb:Mercury_(Budha)
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
planet Mercury
|