planetary system

noun 0.827

planetary science

noun 0.749

planetology

noun 0.737

planet

noun 0.734

planetary gear

noun 0.715

planetary ring

noun 0.699

terrestrial planet

noun 0.659

planetary nebula

noun 0.647

planetary gear train

noun 0.644

inner planet

noun 0.632

planetoid

noun 0.622

outer planet

noun 0.617

planer

noun 0.614

extrasolar planet

noun 0.608

planetesimal

noun 0.608

protoplanet

noun 0.603

interplanetary space

noun 0.595

giant planet

noun 0.595

solar system

noun 0.595

planetarium

noun 0.594

terrestrial

noun 0.592

plan

noun 0.583

protoplanetary disk

noun 0.578

orbital

noun 0.568

plane

noun 0.567

earthly

noun 0.565

lunar

noun 0.562

orbital plane

noun 0.559

celestial

noun 0.557

planarity

noun 0.556

planet gear

noun 0.556

dwarf planet

noun 0.550

planisphere

noun 0.549

planum

noun 0.547

placental

noun 0.547

heavenly body

noun 0.544

astral plane

noun 0.544

astral

noun 0.535

solar

noun 0.531

epicyclic gear

noun 0.528

saturn

noun 0.525

galaxy

noun 0.523

gas giant

noun 0.521

minor planet

noun 0.521

spaceplane

noun 0.519

cosmological term

noun 0.518

planner

noun 0.514

plantlet

noun 0.513

orbit

noun 0.511

cosmological scale

noun 0.511

planing

noun 0.509

geographical

noun 0.508

parabolic

noun 0.508

astro

noun 0.506

planter

noun 0.505

zodiac

noun 0.503

celestial mechanics

noun 0.502