File:Portia,_moon_of_Uranus,_1986.jpg · Wikimedia Commons · See Wikimedia Commons
Portia is a moon that orbits the planet Uranus. It is one of several small moons discovered around Uranus and contributes to our understanding of the Uranian system.
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Wikidata facts
- Radius
- 70
- Mass
- 1700000000000000000
- Orbital period
- 0.5131959201
- Image
- Uranus-Portia-Cressida-Ophelia-NASA.gif
Show 11 more facts
- provisional designation
- S/1986 U 1
- semi-major axis of an orbit
- 66097.265
- orbital eccentricity
- 0.00005
- orbital inclination
- 0.05908
- time of discovery or invention
- 1986-01-03
- density
- 1.3
- albedo
- 0.08
- volume as quantity
- 1300000
- surface gravity
- 0.023
- temperature
- 64
- Commons category
- Portia (moon)
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Article
Portia is an inner satellite of Uranus. It was discovered from the images taken by Voyager 2 on 3 January 1986, and was given the temporary designation S/1986 U 1. The moon is named after Portia, the heroine of William Shakespeare's play The Merchant of Venice. It is also designated Uranus XII.
Portia is the second-largest inner satellite of Uranus after Puck. The Portian orbit, which lies inside Uranus's synchronous orbital radius, is slowly decaying due to tidal deceleration. The moon will one day either break up into a planetary ring or hit Uranus.