There are currently 3 astronomical definitions for the tag 'planet'.
planet
earth, jupiter, mars, mercury, neptune, saturn, uranus, venus, extrasolarplanet, giantplanet, hypotheticalplanet, innerplanet, outerplanet
bodeslaw, rochelimit, solarsystem, aeronomy, aphelion, astrology, atmosphere, boundarylayer, centerofmass, collision, composition, core, crater, crust, duststorm, dwarfplanet, equatorialbulge, evolution, exosphere, galileansatellite, geology, geomagnetism, greenhouseeffect, interior, lithosphere, mantle, map, meanequinox, oblateness, occultation, orbitdetermination, orbit, origin, perihelion, period, petrology, phaseangle, planetar, planetaryalignment, planetarymicrolensing, planetaryring, planetesimal, polarcap, polarregion, protoplanet, resonancegap, rill, ringdivision, satellite, semimajoraxis, solarnebula, solarplanetaryrelation, spaceexploration, structure, surfaceofcelestialbody, synodicperiod, syzygy, topography, twobodyproblem, volatile, volcano, waterice, watervapor