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Definitions of comet:
  • noun:   (astronomy) a relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit



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Alternative Terms
ecliptic icy morphology asteroids planet intercept invaluable comet-halley nebulous coma emanate snowball sublimation albedo gaseous silicate oort-cloud condensation coalesce disperse inward solar-system kuiper-belt solar-wind meteor-shower storm tycho-brahe giovanni-alfonso-borelli edmond-halley parabola fred-lawrence-whipple meteor x-ray-astronomy jan-oort gerard-kuiper pluto famine portend ignatius-donnelly immanuel-velikovsky orbit sun ellipse hyperbola earth comet-hale-bopp w-preview-jpg comet-west comet-disambiguation comet-nucleus solar-and-heliospheric-observatory temperature water-annabelle-chvostek-album solid gas phase volatility-chemistry english-language latin greek-language aristotle astronomical-symbols comet-hyakutake elliptic-orbit solar-radiation-2 cosmic-dust radiation-pressure astronomical-unit ion telescope omen oracle-bone bayeux-tapestry norman-conquest england darkness-2 giotto-mission deep-space 19p-borrelly asphalt organic-compound tar petroleum x-ray comet-kohoutek comets-by-aphelion-png main-belt-comet asteroid-belt comet-encke apsis histogram 11p-tempel-swift-linear lincoln-near-earth-asteroid-research comet-mcnaught c680-v1 great-comet-of882 great-daylight-comet-of910 3d-biela comet-iras-araki-alcock iras