Uranus IX - 1986U3
Cressida was named after the daughter of Calchas in Shakespeare's play Troilus and Cressida. It is the forth satellite out from Uranus and was discovered by Voyager 2.
Discovered by ..................................... Voyager 2 Date of discovery ...................................... 1986 Mass (kg) ................................................. ? Equatorial radius (km) ................................... 33 Equatorial radius (Earth = 1) .................... 5.1740e-03 Mean density (gm/cm^3) .................................... ? Mean distance from Uranus (km) ....................... 61,770 Rotational period (days) .................................. ? Orbital period (days) .............................. 0.463570 Mean orbital velocity (km/sec) ......................... 9.70 Orbital eccentricity .................................. 0.000 Orbital inclination .................................... 0.04° Visual geometric albedo ................................ 0.07 Magnitude (Vo) ......................................... 22.2