# Gravitational Accelaration

1. Mar 2, 2006

### avb203796

If an object were discovered oriting at a radius of 3*10^6 m, what would be the time that it would take to complete one orbit around the sun?
So I know I need to use the following equation:

T^2/R^3 = 4pie^2/GM

but do I use the radius they gave me or do I have to add that radius to the the radius of the sun to get R?

2. Mar 2, 2006