Johannas Kepler studied the orbits of our planet for years. He developed the constant for the number of days per year, for each planet. The constant is .168 and it is necessary to take the square root of it, and it is .41. However, 9.864 hours (Gravity time) divided by 24 hours (Our time) is .41. Everything about gravity has to involve the velocity of the gravity fields at the sphere's surfaces.