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Table:  Galilean Moons of Jupiter
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Name       Diameter Diameter     Mass      Mean Orbital Radius   Orbital Period   Eccentricity
             (km)   (Jupiter  (yottagrams) (Jupiter equatorial       (days)
                    equatorial                   radii)
                    diameters)
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Io          3652.7   0.025546   89.319           5.900               1.7691          0.0041
Europa      3121.6   0.021832   48.00            9.387               3.5512          0.0094
Ganymede    5262.4   0.036804  148.19           14.972               7.1546          0.0011
Callisto    4820.6   0.033714  107.59           26.334              16.689           0.0074
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    References: Wikipedia: Moons of Jupiter: List.
    Keywords: day, diameter, eccentricity, Galilean moons (Io, Europa, Ganymede, Callisto), Jupiter, mean orbital radius, orbital period, yottagram.
    Note 1: Yottagram = 10**21 kg, Jupiter equatorial radius = 71492 km, Jupiter equatorial diameter = 142984 km, and day = 86400s are natural units for the Galilean moons. Note that the Moon's mass is 73.42 yottagrams.
    Note 2: The orbits of the Galilean moons all have orbital inclinations of less 0.5° from the equatorial plane of Jupiter, and so to 1st order approximation they all have the same orbital plane.
    Local file: local link: galilean_moons_table.html.
    File: Jupiter moons file: galilean_moons_table.html.
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