The comet is moving around the Sun, currently having a speed of 565.4 km / sec. Its radius vector is 0.005543 AU.

The comet is moving around the Sun, currently having a speed of 565.4 km / sec. Its radius vector is 0.005543 AU. Determine the eccentricity of the cometary orbit.

The comet’s velocity is equal to the parabolic velocity at the same distance from the Sun, and therefore the orbit is a parabola, and its eccentricity is 1.

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