All Questions
3 questions
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4
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Sun and planets orbit each other
Do not the planets and the Sun revolve in orbits around each other and the shape of the orbit depends on where the center of gravity of the system is? The greater the mass of the Sun, the closer the ...
0
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1
answer
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Two Bodies Orbiting Around Each Other and Kepler’s Laws?
If two bodies are orbiting around a central center of gravity, how does Kepler’s first law (the one regarding the ellipse) apply?
- 1,499
11
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Kepler problem in time: how do two gravitationally attracted particles move? [duplicate]
Two particles with initial positions and velocities $r_1,v_1$ and $r_2,v_2$ are interacting by the inverse square law (with G=1), so that
$$ {d^2r_1\over dt^2} = - { m_2(r_1-r_2)\over |r_1-r_2|^3} $$
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