One of the satellites of Jupiter has an orbital period of `1.769` days and the radius of the orbit is `4.22×10^8m`. Show that the mass of the Jupiter is about one thousandth that of the Sun.

How will you 'weigh the Sun', that is estimate its mass? The mean orbital radius of the earth around the Sun is 1.5×10^8km .

our earth has several artificial satellites but the moon is the only natural satellite. distance to the moon from the Earth is 3.84×10^8m and the time period of moon's revolution is 27.3 days. obtain the mass of earth. (gravitational constant G=6.67×10^(-11)Nm^2kg^(-2)