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Sphere of influence (astrodynamics)

Sphere of influence (SOI) in astrodynamics and astronomy is an imaginary sphere around a celestial body that delimits a part of space where an orbiting body is under major influence of a given celestial body and not under the influence of Sun.

Body SOI RadiusSOI Radius
- [km] [body radii]
Mercury 113 × 103 45
Venus 617 × 103 100
Earth 924 × 103 145
Moon 66,1 × 103 38
Mars 574 × 103 170
Jupiter 48.3 × 106 677
Saturn 54.6 × 106 901
Uranus 51.8 × 106 2025
Neptune 86.7 × 106 3866
Pluto 3.16 × 106 2753

Note:

Science Fair Project Encyclopedia Contents Page
03-10-2013 05:06:04
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