planetlike
Spherical and orbiting
Resembling or characteristic of a planet: a planetlike body orbiting the distant star, the moon's planetlike surface.
The term appears in astronomical contexts for objects that share some but not all planetary features—sufficient mass, orbital behavior, or spherical shape.
Hydrogen-helium planetary body
- terrestrialRelating to land
- rockyCovered with stones
- ice giantLarge frigid outer planet
- brown dwarfSubstellar object, no fusion
Subterranean magma expulsion process
- tectonicsStudy of crustal deformation
- silicateOxygen-bound crystal compound
- crustHard outer layer
- mantleCovering or wrap
core · surface · landforms · erosion · sedimentary · geomorphology · cratered · differentiated
Region allowing liquid water
- Goldilocks zoneLife-permitting stellar region
- biosignatureEvidence of living processes
- atmosphereGaseous layer around planets
- climatePrevailing atmospheric conditions
oceanic · hydrology · cryosphere · magnetosphere · biosphere · temperate · liquid water · oxygen
Violent governmental overthrow
- trajectoryPath of moving object
- ellipseConic section curve
- transitMovement between places
- aphelionFarthest point from sun
perihelion · eccentricity · inclination · axis · retrograde · prograde · resonance · circumnavigation
Early-stage forming planet
- accretionGrowth through external addition
- differentiationRecognizing meaningful differences
- migrationMovement to new territory
- circumstellarSurrounding a star
condensation · coalescence · embryo · oligarch · runaway growth · collapse · fragmentation
gas giant
Hydrogen-helium planetary body
- terrestrialRelating to land
- rockyCovered with stones
- ice giantLarge frigid outer planet
volcanism
Subterranean magma expulsion process
mantle · core · surface · landforms · erosion · sedimentary · geomorphology · cratered · differentiated · molten
habitable zone
Region allowing liquid water
- Goldilocks zoneLife-permitting stellar region
- biosignatureEvidence of living processes
- atmosphereGaseous layer around planets
climate · oceanic · hydrology · cryosphere · magnetosphere · biosphere · temperate · liquid water · oxygen · greenhouse
revolution
Violent governmental overthrow
- trajectoryPath of moving object
- ellipseConic section curve
- transitMovement between places
aphelion · perihelion · eccentricity · inclination · axis · retrograde · prograde · resonance · circumnavigation · heliocentric
protoplanet
Early-stage forming planet
- accretionGrowth through external addition
- differentiationRecognizing meaningful differences
- migrationMovement to new territory
circumstellar · condensation · coalescence · embryo · oligarch · runaway growth · collapse · fragmentation
like, planet, planets, planetary, planetarium, exoplanet, interplanetary, planetoid, planetesimal