What equation do you use to find the curvature a body of mass creates? I know the answer for the suns mass is 1.75 arc-seconds. So if I took the g of the sun and divided it by the g of the earth and divided 1.75 arc-seconds by the ratio of the g difference would I get the earth's curvature. Which is about 0.0626 arc-seconds from what I'm doing. If I knew the formula that is used to get the answer for the sun things would be so much easier. Thanks for any help.