Planetary Models
  For most applications, the planets and many of the satellites can be modeled as a sphere or a slightly flattened sphere. The planets Jupiter and Saturn are the most flattened of all of the planets. This is determined by the Ellipticity of the planet. Here is a table of values to use for modeling the planets based upon a width diameter of 1.

PlanetHeight
Jupiter0.94
Saturn0.90
Uranus0.98
Neptune0.98

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FormatObjectTypeProducedCopyright
549K DXFDeimosSatellite of
Mars
NASACopyright Free
581K DXFPhobosSatellite of
Mars
NASACopyright Free
586K DXFAmaltheaSatellite of
Jupiter
NASACopyright Free
589K DXFEpimetheusSatellite of
Saturn
NASACopyright Free
589K DXFHyperionSatellite of
Saturn
NASACopyright Free
593K DXFCastaliaAsteroidNASACopyright Free
580K DXFGeographosAsteroidNASACopyright Free
550K DXFIdaAsteroidNASACopyright Free
581K DXFToutatisAsteroidNASACopyright Free
 
© Copyright 2002 Calvin J. Hamilton. All rights reserved.