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Type: Open-Ended
Category: Planetary Motion
Level: Grade 8
Tags: keplers formula
Author: Robyn_Black
Last Modified: 10 years ago

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Planetary Motion Question

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Grade 8 Planetary Motion

Kepler's third law can be expressed with the formula p2=a3, where P is the period of revolution and a is the semi-major axis of an orbiting body. For example Mars's period is 1.88 years, and its semi-major axis is 1.523 AU. Thus, 1.882=1.5233=3.53.
Calculate the dwarf planet, Makemake, period of revolution if the semi-major axis is 45.79 AU.