You searched for: “inferior planet”
inferior planet (s) (noun), inferior planets (pl)
Any planet whose orbit is smaller than that of Earth: The result is that Venus and Mercury are the two inferior planets of the solar system.

This entry is located in the following unit: Astronomy and related astronomical terms (page 13)
Word Entries containing the term: “inferior planet”
inferior planet conjunction (s) (noun), inferior planet conjunctions (pl)
The celestial alignment of a planet passing between the Earth and the Sun: When Mercury or Venus lies between the Earth and the Sun, an inferior planet conjunction occurs.
This entry is located in the following unit: Astronomy and related astronomical terms (page 13)