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

Perturbation :: Perturbation (n.) A disturbance in the regular elliptic or other motion of a heavenly body, produced by some force additional to that which causes its regular motion; as, the perturbations of the planets are caused by their attraction on each other..
Appulsive :: Appulsive (a.) Striking against; impinging; as, the appulsive influence of the planets..
Curtate :: Curtate (a.) Shortened or reduced; -- said of the distance of a planet from the sun or earth, as measured in the plane of the ecliptic, or the distance from the sun or earth to that point where a perpendicular, let fall from the planet upon the plane of the ecliptic, meets the ecliptic..
Georgium Sidus :: Georgium Sidus () The planet Uranus, so named by its discoverer, Sir W. Herschel..
Circumjovial :: Circumjovial (n.) One of the moons or satellites of the planet Jupiter.
Venus :: Venus (n.) The metal copper; -- probably so designated from the ancient use of the metal in making mirrors, a mirror being still the astronomical symbol of the planet Venus..
Venus :: Venus (n.) One of the planets, the second in order from the sun, its orbit lying between that of Mercury and that of the Earth, at a mean distance from the sun of about 67,000,000 miles. Its diameter is 7,700 miles, and its sidereal period 224.7 days. As the morning star, it was called by the ancients Lucifer; as the evening star, Hesperus..
Siderated :: Siderated (a.) Planet-struck; blasted.
Vesta :: Vesta (n.) An asteroid, or minor planet, discovered by Olbers in 1807..
Trioctile :: Trioctile (n.) An aspect of two planets with regard to the earth when they are three octants, or three eighths of a circle, that is, 135 degrees, distant from each other..
Conjunction :: Conjunction (n.) The meeting of two or more stars or planets in the same degree of the zodiac; as, the conjunction of the moon with the sun, or of Jupiter and Saturn. See the Note under Aspect, n., 6..
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..
Geocentrical :: Geocentrical (a.) Having reference to the earth as center; in relation to or seen from the earth, -- usually opposed to heliocentric, as seen from the sun; as, the geocentric longitude or latitude of a planet..
Epoch :: Epoch (n.) The date at which a planet or comet has a longitude or position.
Erratic :: Erratic (a.) Having no certain course; roving about without a fixed destination; wandering; moving; -- hence, applied to the planets as distinguished from the fixed stars..
Semiquintile :: Semiquintile (n.) An aspect of the planets when distant from each other half of the quintile, or thirty-six degrees..
Rise :: Rise (n.) Appearance above the horizon; as, the rise of the sun or of a planet..
Planetic :: Planetic (a.) Alt. of Planetica.
Malign :: Malign (a.) Unfavorable; unpropitious; pernicious; tending to injure; as, a malign aspect of planets..
Saturn :: Saturn (n.) One of the planets of the solar system, next in magnitude to Jupiter, but more remote from the sun. Its diameter is seventy thousand miles, its mean distance from the sun nearly eight hundred and eighty millions of miles, and its year, or periodical revolution round the sun, nearly twenty-nine years and a half. It is surrounded by a remarkable system of rings, and has eight satellites..
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