This animation shows elliptical orbits with different eccentricities; the locations of the two foci of one such ellipse; and the elements involved in the mathematical definition of an ellipse.
Original animation by Windows to the Universe staff (Randy Russell).

This animation shows elliptical orbits with different eccentricities. It also shows how the Sun is at the focus of an ellipse, and some of the math behind elliptical orbits.
Original animation by Windows to the Universe staff (Randy Russell).

This animation shows elliptical orbits with different eccentricities. It also shows how the Sun is at the focus of an ellipse, and some of the math behind elliptical orbits.
Original animation by Windows to the Universe staff (Randy Russell).

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