lunar crater Definition

crater, asteroid, ejecta, oort cloud, martian, planetoid, moon, lunar, enceladus, celestial sphere, meteor, andromeda galaxy, mimas, meteorite, cometary, meteoroid, astrobleme, rock outcrop, airglow, minor planet, cosmic ray, mesosphere, jovian, syrtis major, ionosphere, major planet, exosphere, giant planet, cosmic microwave background, phobos, circumstellar, interstellar space, aeronomy, phyllosilicate, planitia, spherules, earthshine, cosmic rays, moonlet, magnetosphere, themis, bolide, magnetic monopole, cassini, milky way galaxy, noctilucent, spacecraft, cherenkov, rover, mossbauer, corot, saturnian, chromosphere, iapetus, epsilon aurigae, horsehead nebula, antiproton, coronagraph, heliosphere, pions, cosmos, micrometeorite, particle beam, gradiometer, quasar, astronomers, spectrometric, inferior planet, neutrino, ionised, spectroscopic analysis, planck, retroreflector, omega centauri, eridanus, polarimetry, lobate, spaceward, antineutrinos, lander, circumjovial, photosphere, spectrographic, orbiter, gravitational interaction, superior planet, synchronous orbit, astrometry, hypervelocity, osiris, subglacial, trifid, planets, exobiology, inner planet, interstellar medium, extraterrestrial object, flyby, huygens, meteoroidal,