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## Homework Statement

"The mass of a star is 4.85x10^29kg. In scientific notation, Kepler's constant for that star is

*b*x10^w s

^{2}/m

^{3}. the value of

*b*is_____."

## Homework Equations

K=T

^{2}/r

^{3}

## The Attempt at a Solution

This problem is very tough. I first assumed that K would be 0 because the star has no satellites, and therefore is experiencing linear motion, not circular motion. To my dismay however, the answer is indeed 3 digits and K

_{star}> 0.

The greatest obstacle is how am I to derive the period and semi major axis of its orbit, if i am only given the star's mass?!

Any insights into this problem are helpful.

Thanks!