Stephano (moon)
From Free net encyclopedia
| Discovery | |||||||
|---|---|---|---|---|---|---|---|
| Discovered by | Brett J. Gladman, Matthew J. Holman, John J. Kavelaars, Jean-Marc Petit, and Hans Scholl | ||||||
| Discovered in | July 18, 1999 | ||||||
| Orbital characteristics | |||||||
| Mean radius | 8,004,000 km | ||||||
| Eccentricity | 0.2295 | ||||||
| Orbital period | 677.37 d | ||||||
| Inclination | 123.26° (to Uranus' equator) 144.103° (to the local Laplace plane) 141.81° (to the ecliptic) | ||||||
| Is a satellite of | Uranus | ||||||
| Physical characteristics | |||||||
| Mean diameter | 20 km | ||||||
| Surface area | ~1260 km2 | ||||||
| Volume | ~4200 km3 | ||||||
| Mass | 6.0Template:E kg | ||||||
| Mean density | ~1.5 g/cm3 | ||||||
| Surface gravity | ~0.0041 m/s2 | ||||||
| Escape velocity | ~0.0090 km/s | ||||||
| Rotation period | ? | ||||||
| Axial tilt | ?° | ||||||
| Albedo | 0.07 (assumed) | ||||||
| Surface temp. |
| ||||||
| Atmospheric pressure | 0 kPa | ||||||
Stephano (stef'-ə-noe or ste-faa'-noe, IPA Template:IPA) is a natural satellite of Uranus. It was discovered by Brett J. Gladman, et al. in 1999, and given the temporary designation S/1999 U 2. It is also designated Uranus XX. It is named after the drunken butler in William Shakespeare's play The Tempest.
| Image:Uranus2 symbol.ant.png Uranus (satellites) edit |
|---|
| Cordelia | Ophelia | Bianca | Cressida | Desdemona | Juliet | Portia | Rosalind | Cupid |
| Belinda | Perdita | Puck | Mab | Miranda | Ariel | Umbriel | Titania | Oberon | Francisco |
| Caliban | Stephano | Trinculo | Sycorax | Margaret | Prospero | Setebos | Ferdinand |
| See also: Pronunciation key | Rings of Uranus |
Template:Astro-stubbs:Stefano (mjesec) da:Stephano (måne) de:Stephano (Mond) fr:Stephano (lune) nl:Stephano (maan) pl:Stefano (księżyc) sk:Stephano (mesiac) sv:Stephano zh:天卫二十