An extrasolar planet has an orbital period of 2910.76 days and a semi-major axis of 2.027...

An extrasolar planet has an orbital period of 2910.76 days and a semi-major axis of 2.027 AU. What is the average orbital velocity (in km/s) of the planet?

Expert Solution

1 AU = 1.496*10¹¹ m

1 day =86400 s

Average orbital velocity is given by

V=2pi*a/T

V=2pi*(2.027*1.496*10¹¹)/(2910.76*86400)

V=7576 m/s = 7.576 km/s

genius_generous answered 2 years ago

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