<Dd> k = 0.017 202 098 95 A U 3 2 d a y − 1 M ⊙ − 1 2 (\ displaystyle k = 0.017 \ 202 \ 098 \ 95 \ (\ rm ((AU) ^ (\ frac (3) (2)) \ (\ rm ((day) ^ (- 1) \ M_ (\ odot) ^ (- (\ frac (1) (2)))))))) </Dd> <P> If instead of mean solar day we use the sidereal year as our time unit, the value of ks is very close to 2π (k = 7000628315000000000 ♠ 6.283 15). </P> <P> The standard gravitational parameter GM appears as above in Newton's law of universal gravitation, as well as in formulas for the deflection of light caused by gravitational lensing, in Kepler's laws of planetary motion, and in the formula for escape velocity . </P>

Give reason g is known as gravitational constant