inner Solar System

E648335

The inner Solar System is the region of our planetary system that includes the four terrestrial planets—Mercury, Venus, Earth, and Mars—along with the asteroid belt’s inner edge, all orbiting relatively close to the Sun.

All labels observed (1)

Label Occurrences
inner Solar System canonical 1

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf region of the Solar System
averageOrbitalDistanceRange about 0.39 to about 2.1 astronomical units from the Sun
averageOrbitalPeriodRange about 0.24 to 1.88 Earth years for major planets
boundedBy Sun
characterizedBy relatively high temperatures compared to outer Solar System
rocky planets
shorter orbital periods than outer planets
containsDwarfPlanetCandidate Ceres vicinity (on inner edge of asteroid belt)
containsHabitablePlanet Earth
containsHumanSpaceActivityRegion Earth orbit
Mars vicinity (planned and robotic missions)
Moon vicinity
containsOrbitalRegion near-Earth object region
containsPlanet Earth
Mars
Mercury
Venus
containsPlanetType terrestrial planet
containsSmallBodyPopulation asteroids
dust
meteoroids
distinguishedFrom Kuiper belt
linked to: Kuiper Belt

Oort cloud
outer Solar System
exploredBy space probes
telescopic observations
formationCharacteristic higher temperatures led to condensation of refractory materials
lack of volatile-rich giant planets
gravitationallyInfluencedBy Sun
gravitationallyInteractsWith outer Solar System
hasFormationHistory formed from inner part of the protoplanetary disk
hasPart Earth
Mars
Mercury
Venus
inner edge of the asteroid belt
main-belt asteroids near the inner edge
near-Earth asteroids
terrestrial planets
includesHabitableZone region around the Sun where liquid water can exist on a planet surface
orbits Sun
outerBoundaryApproximateLocation inner edge of the main asteroid belt
outerBoundaryApproximateSemiMajorAxis about 2.1 astronomical units
partOf Solar System
studiedBy astronomy
planetary science
typicalPlanetaryAtmospheres thin or moderate atmospheres compared to gas giants
typicalPlanetComposition silicate rock and metals

How these facts were elicited

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.