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Orbital mechanics or astrodynamics is the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other spacecraft. For the movements of celestial bodies, see [celestial-mechanics].

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A different way to get to the sun is 9.5 km/s for getting to LEO, 3.5 km/s (less if you slingshot around moon) to escape to solar orbit, then 8.8 km/s for solar escape minus Jupiter/Saturn slingshot t …
answered Aug 14 '16 by jeff