Defining the term planet is important, because such definitions reflect our understanding of the origins, architecture, and evolu-tion of our solar system. Over historical time, the objects …

Where in the night sky a planet can be found is most easily explained by its constellation. Unlike planets in our system which appear to move quickly through the constellations, exoplanets …

Resolution 5A is the principal definition for the IAU usage of "planet" and related terms. Resolution 5B adds the word "classical" to the collective name of the eight planets Mercury through...

The “see below” points to a list of primary planets, a definition of minor planet as an asteroid, and a definition of secondary planet as “a planet that orbits another planet, a satellite, a moon.”

“Perfect Little Planet” Vocabulary List Solar System Planet Asteroid Moon Comet Dwarf Planet Gas Giant "Rocky Midgets" (Terrestrial Planets) Sun Star Impact Orbit Planetary Rings …

Match each planet to its description.

Defining Planets among Planetary Bodies is Semantics, and has to be, to some degree, Arbitrary. A good definition should minimize arbitrariness, but cannot be expected to do away with it …