Sunday

December 21, 2014

December 21, 2014

Posted by **SW** on Sunday, October 2, 2011 at 11:56pm.

- Astronomy -
**drwls**, Monday, October 3, 2011 at 5:40amFor the actual sun's mass, according to Kepler's third law,

P^2/a^3 = 1 = P^2/1000

P = 31.6 years

For a sun that is twice as massive, the centripetal gravity force is twice as large, so V must increase by a factor of sqrt2 to balance it.

The period will be lower by a factor 1/sqrt2 due to the higher speed

Period = 31.6/1.414 = 22.4 years

**Answer this Question**

**Related Questions**

astronomy - suppose teh sun were twice as massive a it actually is. What would ...

physics - The physics of orbital radius and orbital period of a planet. If a ...

Astronomy - Orbital speed is the speed with which a planet moves around the sun...

Math - The period of revolution of a planet around the sun is the time it takes ...

physics - The mean distance of the planet Neptune from the Sun is 30.05 times ...

Physics - A certain planet is located 3.54 x 10^11 m from its sun. If its ...

Physics - A certain planet is located 3.54 x 10^11 m from its sun. If its ...

Physics - A certain planet is located 3.54 x 10^11 m from its sun. If its ...

urgent (physics) - A certain planet is located 3.54 x 10^11 m from its sun. If ...

physics help 3!! ** - Based on the following data about planet X (which orbits ...