A diagram showing a planet on its elliptical orbit around the Sun. The shaded areas are of equal size, and were swept out in equal time, i.e. it took the same amount of time for the planet to move from A to B and from C to D.
Windows to the Universe original image

A diagram showing a planet on its elliptical orbit around the Sun. The shaded areas are of equal size, and were swept out in equal time, i.e. it took the same amount of time for the planet to move from A to B and from C to D.
Windows to the Universe original image

A diagram showing a planet on its elliptical orbit around the Sun. The shaded areas are of equal size, and were swept out in equal time, i.e. it took the same amount of time for the planet to move from A to B and from C to D.
Windows to the Universe original image

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