Thermoelectric Outer Planets Spacecraft TOPS Advanced Systems Technology Project
Ephemerides and completeness . There are 29 known satellites of the outer
planets , with 6 comparable in size to the Earth's Moon . One of them is larger
than Mercury . If these bodies were at 1 AU , they would probably be called
planets .
Author: California Institute of Technology. Thermoelectric Outer Planets Spacecraft Project
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ISBN:
Page: 405
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