EntityQ2556676· pop 20· linked from 51 articlesinvariable planeSign in to saveplane passing through the barycenter of a planetary system, perpendicular to its angular momentum vectorConnectionsMilky WayEntitygiant planetEntityFranceCountryEarthConceptSunConceptMarsEntitySolar SystemEntityVenusEntityMercuryEntityJupiterEntitySaturnEntityUranusEntityNeptuneEntityPlutoEntityCeresEntityPierre-Simon LaplaceEntityEuclidean vectorEntitydigital object identifierEntityInternational Standard Serial NumberEntityVestaEntityCategoriesAstronomical coordinate systemsDynamics of the Solar SystemPlanes (geometry)