Sphere of influence (astrodynamics)

From Biocrawler, the free encyclopedia.

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 Radius	SOI 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:

Wikipedia (http://en.wikipedia.org/wiki/Main_Page) Sphere_of_influence_(astrodynamics) (http://en.wikipedia.org/wiki/Sphere_of_influence_(astrodynamics)) version history (http://en.wikipedia.org/w/index.php?title=Sphere_of_influence_(astrodynamics)&action=history) GNU Free Documentation Lizenz (http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License) CC-by-sa (http://creativecommons.org/licenses/by-sa/2.5/)

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