nebula

noun 0.738

reflection nebula

noun 0.660

planetary system

noun 0.651

planetary

noun 0.647

planetary ring

noun 0.646

supernova

noun 0.620

neutron star

noun 0.607

protoplanetary disk

noun 0.595

extrasolar planet

noun 0.594

dwarf planet

noun 0.577

white dwarf

noun 0.575

planetesimal

noun 0.559

outer planet

noun 0.556

giant planet

noun 0.555

nebulosity

noun 0.554

star cluster

noun 0.554

planetary science

noun 0.554

planetarium

noun 0.550

red giant

noun 0.548

gas giant

noun 0.547

interplanetary space

noun 0.547

planetoid

noun 0.547

planet

noun 0.547

terrestrial planet

noun 0.544

molecular cloud

noun 0.540

protoplanet

noun 0.540

globular cluster

noun 0.540

nebulosus

noun 0.532

starburst galaxy

noun 0.528

stellar wind

noun 0.524

minor planet

noun 0.523

galaxy

noun 0.523

neb

noun 0.522

planetary gear

noun 0.521

inner planet

noun 0.518

red supergiant

noun 0.515

solar system

noun 0.515

annular eclipse

noun 0.514

neon

noun 0.513

dwarf galaxy

noun 0.512

zodiacal light

noun 0.512

irregular galaxy

noun 0.511

solar corona

noun 0.510

neutron

noun 0.509

blue supergiant

noun 0.508

planetology

noun 0.507

neptunium

noun 0.506

brown dwarf

noun 0.505

solar eclipse

noun 0.505

celestial object

noun 0.504

neon light

noun 0.502

black dwarf

noun 0.501

active galactic nucleus

noun 0.501

binary star

noun 0.501

heavenly body

noun 0.501

nightglow

noun 0.500