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Kepler's Second Law


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Kepler's Second Law: Law of Equal Areas
An imaginary line drawn from sun to any planet with equal time intervals and areas between.
Perihelion
A planet's closest point to the sun.
Aphelion
A planet's furthest point from the sun.
The faster it goes.
The closer a planet gets to the sun-
Do planets travel at constant angular speed?
No. Speed varies depending on how close or far from the sun they are.