7.5 Let us assume that our galaxy consists of stars each of one solar mass

PHYSICS · Subjective · CBSE · Physics · Gravitation · Gravitation

Problem

7.5 Let us assume that our galaxy consists of

2.5 \times 10^{11}

stars each of one solar mass. How long will a star at a distance of 50,000 ly from the galactic centre take to complete one revolution? Take the diameter of the Milky Way to be

10^{5} \mathrm{ly}

Related theory

Universal Law of Gravitation
Gravitation
Satellites & Orbital Motion
Orbital velocity and period
Earth satellites

Browse the problem library