1500 years for light to travel that distance) which is 1.419x1019m. The mass of the black hole is 10 times the mass of our sun. a. What is the gravitational pull between the sun and the earth? b. What is the pull of the gravitational force of the black hole on our sun? c. How does that compare with the gravitational pull of the sun on earth? d. Do we need to worry? Mass of sun is approximately = 2x1030 Kg Mass of earth is approximately = 6 x10 24 Kg Distance of sun and earth=1.5 x 10 11 m G is the gravitational constant and it is equal to 6.67x10-13 N.mz/kgz