Portia (GIF; 77K)

Uranus XII - 1986U1

Portia was named after a rich heiress in Shakespeare's play Merchant of Venice. It is the seventh known satellite of Uranus and was discovered by Voyager 2.

Portia Statistics

Discovered by ..................................... Voyager 2
Date of discovery ...................................... 1986

Mass (kg) ................................................. ?
Equatorial radius (km) ................................... 55
Equatorial radius (Earth = 1) .................... 8.6234e-03
Mean density (gm/cm^3) .................................... ?

Mean distance from Uranus (km) ....................... 66,100
Rotational period (days) .................................. ?
Orbital period (days) .............................. 0.513196
Mean orbital velocity (km/sec) ......................... 9.37

Orbital eccentricity .................................. 0.000
Orbital inclination .................................... 0.09°

Visual geometric albedo ................................ 0.07
Magnitude (Vo) ......................................... 21.0

Uranus Juliet Rosalind

Author: Calvin J. Hamilton.