ASTR 1050: Survey of Astronomy

28. Kepler's third law, p2=a3, means that. a) planets farther from the Sun move at slower average speeds than nearer planets. b) a planet's period does not depend on the eccentricity of its orbit. c) all orbits with the same semimajor axis have the same period. d) the period of a planet does not depend on its mass. e) All of the above are ... ................
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