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Table 4:

Physical and orbital parameters of Ceres (http://ssd.jpl.nasa.gov/).

mass
$9.4\times10^{20}$ kg
equatorial radius 487.3 km
polar radius 454.7 km
rotational period 0.3781 days
orbital period 1680.5 days
semimajor axis 413 832.587 km
heliocentric gravitational constant $1.327\times10^{11}~{\rm km^3/s^2}$


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