In 1996, astronomers discovered an icy object beyond pluto that was given the designation 1996 tl 66. it has a semimajor axis of 84 au. what is its orbital period in years according to kepler's third law? (round your answer to the nearest whole number; do not include units)

Answer : 2446 years.

Explanation :

Length of semi major axis is,

According to Kepler's third law, square of time period of an orbit is directly proportional to the cube of the semi major axis.

i.e

where G is gravitational constant

M is  mass of sun,

So,

since,

So, orbital period is approximately 2446 years.

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explanation:

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