The difference between Celestial body and Planet

When used as nouns, celestial body means a natural object which is located outside of earth's atmosphere, such as the moon, the sun, an asteroid, planet, or star, whereas planet means each of the seven major bodies which move relative to the fixed stars in the night sky—the moon, mercury, venus, the sun, mars, jupiter and saturn.

check bellow for the other definitions of Celestial body and Planet

  1. Celestial body as a noun (astronomy, astrology):

    A natural object which is located outside of Earth's atmosphere, such as the Moon, the Sun, an asteroid, planet, or star.

  1. Planet as a noun (now, historical, or, astrology):

    Each of the seven major bodies which move relative to the fixed stars in the night sky—the Moon, Mercury, Venus, the Sun, Mars, Jupiter and Saturn.

  2. Planet as a noun (astronomy):

    A body which orbits the Sun directly and is massive enough to be in hydrostatic equilibrium (effectively meaning a spheroid) and to dominate its orbit; specifically, the eight major bodies of Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. (Pluto was considered a planet until 2006 and has now been reclassified as a dwarf planet.)

  3. Planet as a noun:

    A large body which directly orbits any star (or star cluster) but which has not attained nuclear fusion.

  4. Planet as a noun:

    In phrases such as the planet, this planet, sometimes refers to the Earth.

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