Formula Sheet for Astronomy I - Bristol

Law of Areas and Angular Momentum. dA/dt = rvt/2 = r2(d(/dt)/2 = H/2 = A/P = (ab/P Kepler’s 2nd law - of areas. v2 = G(m1 + m2) [2/r - 1/a] vis viva equation (velocity at any point r in orbit) vper = 2(a/P [(1+e)/(1-e)]1/2 velocity at perihelion. vaph= 2(a/P [(1+e)/(1-e)]-1/2 velocity at aphelion Newtonian Mechanics. Law of inertia ................
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