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El problema de Kepler

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A ˙ = J<br />

2<br />

⎧<br />

⎪⎨<br />

⎪⎩<br />

⇒ πab = J<br />

2<br />

T ⇒<br />

2 T<br />

2π<br />

= a3<br />

GM ♣<br />

a = distancia media = 1<br />

(a − ae + a + ae)<br />

2<br />

b = distancia promedio = 1<br />

2π<br />

• Estados <strong>de</strong> difusión: E > 0 ⇒ e > 1<br />

(x − ae) 2<br />

a 2<br />

− y2<br />

= 1<br />

b2 ⎧<br />

⎪⎨ a ≡<br />

⎪⎩<br />

p<br />

e2 GM<br />

=<br />

− 1 2E<br />

p<br />

b ≡ √ =<br />

e2 − 1 J<br />

√<br />

2E<br />

2π<br />

r(ϕ) dϕ<br />

0<br />

⎧<br />

⎪⎨<br />

rm = distancia mínima = c − a = ae − a = p<br />

e + 1<br />

9<br />

⎪⎩<br />

c = √ a 2 + b 2 = p<br />

e 2 − 1 e<br />

e = c<br />

a

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