(astronomy) Based on a planet at the centre of a coordinate system

(obsolete) astrologer / An inhabitant of a planet / An operator of a planetarium

(science fiction) The arrival of a spacecraft on the surface of a planet.

plural of planetessimal

Misspelling of planetesimal.

(astronomy, physics) The branch of astrophysics dealing with planets and planetary systems; planetology

(astronomy) Any secondary body in the Solar system that is geologically differentiated or in hydrostatic equilibrium and thus has a planet-like geology: a planet, dwarf planet, or the larger moons and asteroids.

A planetary object

Relating to a planetoid.

In a planetary manner or context; like planets.