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Words related to orbits

or·bit
O o

  • amor asteroid

    one of a small group of asteroids whose orbits approach but do not cross that of the earth: named after the first such asteroid discovered (1932).

  • apollo asteroid

    one of a number of asteroids whose orbits cross that of the earth.

  • asteroid

    An asteroid is one of the very small planets that move around the sun between Mars and Jupiter.

  • asteroid belt

    the concentrations of asteroids that move around the sun mainly between the orbits of Mars and Jupiter

  • aten asteroid

    one of a small group of asteroids whose orbits cross that of the earth and whose semimajor axes are smaller than that of the earth.

  • atomic structure

    the concept of an atom as a central positively charged nucleus consisting of protons and neutrons surrounded by a number of electrons. The number of electrons is equal to the number of protons: the whole entity is thus electrically neutral
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