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celestial body

Definitions of celestial body
  1. noun
    a natural object visible in the sky
    synonyms: heavenly body
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    Aldebaran
    the brightest star in Taurus
    Algol
    the second brightest star in Perseus; the first known eclipsing binary
    Alpha Centauri
    brightest star in Centaurus; second nearest star to the sun
    Alpha Crucis
    the brightest star in the Southern Cross
    Altair
    double star 15.7 light years from Earth; the brightest star in the Aquila constellation
    Antares
    the brightest star in Scorpius
    Apollo asteroid
    an asteroid whose orbit crosses the Earth's orbit
    Arcturus
    the 4th brightest star and the brightest star in the constellation Bootes; 36 light-years from Earth
    Beta Centauri
    the second brightest star in Centaurus
    Beta Crucis
    the second brightest star in the Southern Cross
    Alpha Orionis
    the second brightest star in Orion
    Callisto
    the second largest of Jupiter's satellites
    Canopus
    supergiant star 650 light years from Earth; second brightest star in the sky
    Capella
    the brightest star in Auriga
    Alpha Geminorum
    a multiple star with 6 components; second brightest in Gemini; close to Pollux
    Ceres
    the largest asteroid and the first discovered
    Crab Nebula
    a remnant of a supernova detected first in 1054 AD
    Deimos
    the outer of two small satellites of Mars
    Deneb
    the brightest star in Cygnus
    Denebola
    a star in Leo approximately 43 light years from Earth
    Earth
    the 3rd planet from the sun; the planet we live on
    Epsilon Aurigae
    the largest known star
    Europa
    the 4th largest of Jupiter's satellites; covered with a smooth shell of frozen water
    evening star
    a planet (usually Venus) seen at sunset in the western sky
    Ganymede
    the largest of Jupiter's satellites
    Io
    the closest of Jupiter's moons; has active volcanoes
    Jupiter
    the largest planet and the 5th from the sun; has many satellites and is one of the brightest objects in the night sky
    Red Planet
    a small reddish planet that is the 4th from the sun and is periodically visible to the naked eye; minerals rich in iron cover its surface and are responsible for its characteristic color
    Mercury
    the smallest planet and the nearest to the sun
    Moon
    the natural satellite of the Earth
    Neptune
    a giant planet with a ring of ice particles; the 8th planet from the sun is the most remote of the gas giants
    Pallas
    a large asteroid; the second asteroid to be discovered
    Phobos
    the larger of the two satellites of Mars
    Pluto
    a small planet and the farthest known planet from the sun; it has the most elliptical orbit of all the planets
    North Star
    the brightest star in Ursa Minor; at the end of the handle of the Little Dipper; the northern axis of the earth points toward it
    Pollux
    the brightest star in Gemini; close to Castor
    Procyon
    the brightest star in Canis Minor
    Proxima Centauri
    the nearest star to the sun; distance: 4.3 light years
    Quaoar
    a planetoid discovered in 2002
    Regulus
    the brightest star in Leo
    Beta Orionis
    the brightest star in Orion
    Saturn
    a giant planet that is surrounded by three planar concentric rings of ice particles; the 6th planet from the sun
    Sedna
    a planetoid of rock and ice about three-quarters the size of Pluto discovered in 2003; the most distant object known to orbit around the sun
    Canicula
    the brightest star in the sky; in Canis Major
    Spica
    the brightest star in Virgo
    Asterope
    one of the stars in the star cluster Pleiades
    Sun
    the star that is the source of light and heat for the planets in the solar system
    Titan
    the largest of the satellites of Saturn; has a hazy nitrogen atmosphere
    Triton
    the largest moon of Neptune
    Uranus
    a giant planet with a ring of ice particles; the 7th planet from the sun has a blue-green color and many satellites
    Vega
    the brightest star in the constellation Lyra
    Venus
    the second nearest planet to the sun; it is peculiar in that its rotation is slow and retrograde (in the opposite sense of the Earth and all other planets except Uranus); it is visible from Earth as an early `morning star' or an `evening star'
    Vesta
    the brightest asteroid but the fourth to be discovered
    types:
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    minor planet, planetoid
    any of numerous small celestial bodies that move around the sun
    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
    planet
    any celestial body (other than comets or satellites) that revolves around a star
    planetesimal
    one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
    primary
    (astronomy) a celestial body (especially a star) relative to other objects in orbit around it
    quasar, quasi-stellar radio source
    a starlike object that may send out radio waves and other forms of energy; many have large red shifts
    satellite
    any celestial body orbiting around a planet or star
    star
    (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
    star
    any celestial body visible (as a point of light) from the Earth at night
    asteroid
    any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)
    binary, binary star, double star
    a system of two stars that revolve around each other under their mutual gravitation
    fixed star
    any star in the Ptolemaic theory of planetary motion
    Galilean, Galilean satellite
    one of the four satellites of Jupiter that were discovered by Galileo
    giant, giant star
    a very bright star of large diameter and low density (relative to the Sun)
    inferior planet
    any of the planets whose orbit lies inside the earth's orbit
    Jovian planet, gas giant
    any of the four outermost planets in the solar system; much larger than Earth and gaseous in nature (like Jupiter)
    KBO, Kuiper belt object
    any of many minor planets in the Kuiper belt outside the orbit of Neptune at the edge of the solar system
    loadstar, lodestar
    guiding star; a star that is used as a reference point in navigation or astronomy
    moon
    any natural satellite of a planet
    Lucifer, Phosphorus, daystar, morning star
    a planet (usually Venus) seen just before sunrise in the eastern sky
    multiple star
    a system of three or more stars associated by gravity
    neutron star
    a star that has collapsed under its own gravity; it is composed of neutrons
    nova
    a star that ejects some of its material in the form of a cloud and become more luminous in the process
    outer planet
    (astronomy) a major planet whose orbit is outside the asteroid belt (Jupiter, Saturn, Uranus, Neptune, Pluto)
    red dwarf, red dwarf star
    a small, old, relatively cool star; approximately 100 times the mass of Jupiter
    red giant, red giant star
    a large, old, luminous star; has a relatively low surface temperature and a diameter large relative to the sun
    starlet
    a small star
    sun
    any star around which a planetary system revolves
    supergiant
    an extremely bright star of very large diameter and low density
    superior planet
    any of the planets whose orbit lies outside the earth's orbit
    supernova
    a star that explodes and becomes extremely luminous in the process
    terrestrial planet
    a planet having a compact rocky surface like the Earth's; the four innermost planets in the solar system
    variable, variable star
    a star that varies noticeably in brightness
    white dwarf, white dwarf star
    a faint star of enormous density
    type of:
    natural object
    an object occurring naturally; not made by man
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