Question

Pluto was first discovered in 1930.It was determined to be located about 39.48 times as far away from the Sun as Earth is. How long does Pluto take to orbit the Sun?

Answer 1

Answer:

It takes total 248 years for Pluto to orbit the sun.

Answer 2

Pluto will take 253 year to orbit the sun.

What is the distance between the Sun and Earth ?

Earth's average distance to the Sun is about 93 million miles (150 million kilometers) from the Sun.

What is the distance between Pluto and the Sun?

• Pluto is located about 39.48 times as far away from the Sun as Earth is.
• So the distance between Pluto and Sun will be , 39.48 X 93 = 3671.64 million miles.

What is Kepler's third law?

• The squares of the orbital periods of the planets are directly proportional to the cubes of the semi-major axes of their orbits.
• P^2 = a^3 , where P = period of orbit , a = distance of semi major axis.

Pluto has a semi-major axis distance a=40 then T2=403, which gives T=253 years.

Therefore, Pluto will take 253 year to orbit the sun.

Learn more about Kepler's third law here -

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