Definition of planet

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Planet (n.) A celestial body which revolves about the sun in an orbit of a moderate degree of eccentricity. It is distinguished from a comet by the absence of a coma, and by having a less eccentric orbit. See Solar system..

Lern More About Planet

Jove :: Jove (n.) The planet Jupiter.
Node :: Node (n.) One of the two points where the orbit of a planet, or comet, intersects the ecliptic, or the orbit of a satellite intersects the plane of the orbit of its primary..
Mars :: Mars (n.) One of the planets of the solar system, the fourth in order from the sun, or the next beyond the earth, having a diameter of about 4,200 miles, a period of 687 days, and a mean distance of 141,000,000 miles. It is conspicuous for the redness of its light..
Inferior :: Inferior (a.) Nearer the sun than the earth is; as, the inferior or interior planets; an inferior conjunction of Mercury or Venus..
Orb :: Orb (n.) A spherical body; a globe; especially, one of the celestial spheres; a sun, planet, or star..
House :: House (n.) A twelfth part of the heavens, as divided by six circles intersecting at the north and south points of the horizon, used by astrologers in noting the positions of the heavenly bodies, and casting horoscopes or nativities. The houses were regarded as fixed in respect to the horizon, and numbered from the one at the eastern horizon, called the ascendant, first house, or house of life, downward, or in the direction of the earth's revolution, the stars and planets passing through them in
Apsis :: Apsis (n.) One of the two points of an orbit, as of a planet or satellite, which are at the greatest and least distance from the central body, corresponding to the aphelion and perihelion of a planet, or to the apogee and perigee of the moon. The more distant is called the higher apsis; the other, the lower apsis; and the line joining them, the line of apsides..
Planetary :: Planetary (a.) Having the nature of a planet; erratic; revolving; wandering.
Zodiacal :: Zodiacal (a.) Of or pertaining to the zodiac; situated within the zodiac; as, the zodiacal planets..
Uranian :: Uranian (a.) Of or pertaining to the planet Uranus; as, the Uranian year..
Intramercurial :: Intramercurial (a.) Between the planet Mercury and the sun; -- as, the hypothetical Vulcan is intramercurial..
Radius Vector :: Radius vector (n.) An ideal straight line joining the center of an attracting body with that of a body describing an orbit around it, as a line joining the sun and a planet or comet, or a planet and its satellite..
Calculated :: Calculated (p. p. & a.) Worked out by calculation; as calculated tables for computing interest; ascertained or conjectured as a result of calculation; as, the calculated place of a planet; the calculated velocity of a cannon ball..
Epicycle :: Epicycle (n.) A circle, whose center moves round in the circumference of a greater circle; or a small circle, whose center, being fixed in the deferent of a planet, is carried along with the deferent, and yet, by its own peculiar motion, carries the body of the planet fastened to it round its proper center..
Primum Mobile :: Primum mobile () In the Ptolemaic system, the outermost of the revolving concentric spheres constituting the universe, the motion of which was supposed to carry with it all the inclosed spheres with their planets in a daily revolution from east to west. See Crystalline heavens, under Crystalline..
Planetary :: Planetary (a.) Consisting of planets; as, a planetary system..
Epoch :: Epoch (n.) An arbitrary fixed date, for which the elements used in computing the place of a planet, or other heavenly body, at any other date, are given; as, the epoch of Mars; lunar elements for the epoch March 1st, 1860..
Semiquintile :: Semiquintile (n.) An aspect of the planets when distant from each other half of the quintile, or thirty-six degrees..
Star :: Star (n.) A planet supposed to influence one's destiny; (usually pl.) a configuration of the planets, supposed to influence fortune..
Celidography :: Celidography (n.) A description of apparent spots on the disk of the sun, or on planets..
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