The table below presents the semi-major axis (a) and Actual orbital period for all of the major planets in the solar system. Cube for each planet the semi-major axis in Astronomical Units. Then take the square root of this number to get the Calculated orbital period of each planet. Fill in the final row of data for each planet. Table of Data for Kepler’s Third Law: Table of Data for Kepler’s Third Law: Planet aau = Semi-Major Axis (AU) Actual Planet Calculated Planet Period (Yr) Period (Yr) __________ ______________________ ___________ ________________ Mercury 0.39 0.24 Venus 0.72 0.62 Earth 1.00 1.00 Mars 1.52 1.88 Jupiter 5.20 11.19 Saturn 9.54 29.50 Uranus 19.20 84.00 Neptune 30.10 164.80 __________________________________________________________________ Question 1: Will a comet orbit faster at perihelion or aphelion? Question 2: The semi-major axis of Halley’s Comet is 17.8 AU. How long does it take Halley’s Comet to complete one orbit around the Sun?
The table below presents the semi-major axis (a) and Actual orbital period for all of the major planets in the solar system. Cube for each planet the semi-major axis in Astronomical Units. Then take the square root of this number to get the Calculated orbital period of each planet. Fill in the final row of data for each planet.
Table of Data for Kepler’s Third Law:
Table of Data for Kepler’s Third Law:
Planet aau = Semi-Major Axis (AU) Actual Planet Calculated Planet
Period (Yr) Period (Yr)
__________ ______________________ ___________ ________________
Mercury 0.39 0.24
Venus 0.72 0.62
Earth 1.00 1.00
Mars 1.52 1.88
Jupiter 5.20 11.19
Saturn 9.54 29.50
Uranus 19.20 84.00
Neptune 30.10 164.80
__________________________________________________________________
Question 1: Will a comet orbit faster at perihelion or aphelion?
Question 2: The semi-major axis of Halley’s Comet is 17.8 AU. How long does it take Halley’s Comet to complete one orbit around the Sun?
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