two-body problem

[too-bod-ee]

two-body problem

[too-bod-ee]
noun Astronomy, Mechanics.
the problem of calculating the motions of two bodies in space moving solely under the influence of their mutual gravitational attraction.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Two-body problem is always a great word to know.
So is star. Does it mean:
the Twins, a zodiacal constellation between Taurus and Cancer containing the bright stars Castor and Pollux
a celestial body with a mass of gas that is hot enough to produce and sustain nuclear fusion, thus producing luminosity
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