inferior planet


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Related to inferior planet: Interior planets

inferior planet

n.
Either of the planets Mercury or Venus, whose orbits lie between Earth and the sun.

inferior planet

n
(Celestial Objects) either of the planets Mercury and Venus, whose orbits lie inside that of the earth
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.inferior planet - any of the planets whose orbit lies inside the earth's orbitinferior planet - any of the planets whose orbit lies inside the earth's orbit
major planet, planet - (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction
References in periodicals archive ?
When an inferior planet is at the greatest apparent distance from the Sun, it is said to be at greatest elongation.
The year 2012 is the 50th anniversary of Wegner's paper, and therefore an appropriate moment to recall the historical problems of mapping that most elusive inferior planet.
The possibility that the inferior planets might occasionally pass in front of the Sun was not considered until the early part of the seventeenth century, when Kepler predicted transits of both Mercury and Venus for 1631.

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