planet Mercury

GPTKB entity

Statements (53)
Predicate Object
gptkbp:instanceOf concert hall
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
https://www.w3.org/2000/01/rdf-schema#label planet Mercury
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
gptkbp:bfsLayer 6