Portia
Portia is one of the inner moons of Uranus. It is part of the group of satellites named after this moon, called the Portia Group.
Portia photographed by Voyager 2 on January 23rd 1986
Facts About Portia:
- Portia is the 7th moon from Uranus.
- It was discovered in photos from Voyager 2 in 1986.
- Its orbit is slowly decaying and it will eventually either crash into Uranus or break into smaller pieces and form a ring around it.
Classification: Moon (orbiting Uranus)
Names: Portia, Uranus XII, S/1986 U1
Discovered: 1986 by Stephen Synnott (Voyager 2)
Naming: Named after the character in William Shakespeare's play The Merchant of Venice.
Mass: 1.7e+18 kg
Semi-major axis: 66097.265
Orbital Period: 0.5131959201 Earth days
Orbital Speed: 9.3700 km/s
Eccentricity: 0.00005000
Albedo: 0.0800
Volume: 1300000 km3
Density: 1.3000 g/cm3
Surface Area: 57000 km2
Escape Velocity: 0.0580 km/s
Adjective: Portian