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Answer to Question #40141 in Astronomy | Astrophysics for sargam

Question #40141
a) The comet Encke has an aphelion distance of 6 . 1 × 10^11 m. and perihelion distance of 5.1×10^11 .the mass of the sun is 2×10^30kg. Find the speed of the comet at the perihelion and the aphelion.

b)The planet earth is 1 . 5 × 10 11 m from the sun and orbits the sun in one year. The planet Pluto takes 248 years to orbit the sun. How far is Pluto from the sun?
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