Stephano (/ˈstɛfənoʊ/ STEF-ə-noh or /stɨˈfɑːnoʊ/ stə-FAH-noh) is a retrograde irregular satellite of Uranus. It was discovered by Brett J. Gladman et al. in 1999 and given the provisional designation S/1999 U 2.Confirmed as Uranus XX it was named after the drunken butler in William Shakespeare’s play The Tempest in August 2000.The orbital parameters suggest that it may belong to the same dynamic cluster as Caliban suggesting common origin.
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density (μ3)
1300.0
mass (kg)
2200.0
mean radius (km)
16000.0
orbital period (μ)
5.85248e+07
surface area (km2)
3e+09
temperature (K)
65.0
volume (km3)
2e+13
albedo
0.04
discovery date
1999-07-18
discoverer
Hans Scholl (astronomer), John J. Kavelaars, Matthew J. Holman, Brett J. Gladman, Jean-Marc_Petit
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