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Formulae (1)
Astronomy & Space
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Hill Sphere Radius
r
H
≈
a
(
m
3
M
)
1
/
3
r_H \approx a\left(\frac{m}{3M}\right)^{1/3}
r
H
≈
a
(
3
M
m
)
1/3
The zone where a body's gravity dominates over its host's.