Juliet (moon)
From Wikipedia, the free encyclopedia
- There is also an asteroid called 1285 Julietta.
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| Discovery | |||||||
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| Discovered by | Stephen P. Synnott / Voyager 2 | ||||||
| Discovered in | January 3, 1986 | ||||||
| Orbital characteristics | |||||||
| Semi-major axis | 64,358 km | ||||||
| Eccentricity | 0.00059 | ||||||
| Orbital period | 0.49307 d | ||||||
| Inclination | 0.056° (to Uranus' equator) | ||||||
| Is a satellite of | Uranus | ||||||
| Physical characteristics | |||||||
| Mean diameter | 112 km (150 × 74 km) [1] | ||||||
| Surface area | ~28,000 km² (estimate) | ||||||
| Volume | ~430,000 km³ (estimate) | ||||||
| Mass | ~5.6×1017 kg (estimate) | ||||||
| Mean density | ~1.3 g/cm³ (estimate) | ||||||
| Surface gravity | ~0.016 m/s2 (estimate) | ||||||
| Escape velocity | ~0.040 km/s (estimate) | ||||||
| Rotation period | synchronous (assumed) | ||||||
| Axial tilt | zero (assumed) | ||||||
| Albedo | 0.07 (assumed) | ||||||
| Surface temp. |
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| Atmospheric pressure | 0 kPa | ||||||
Juliet (jew'-lee-et, IPA: [ˈdʒuliɛt]) is an inner satellite of Uranus. It is named after the heroine of William Shakespeare's play Romeo and Juliet. It is also designated Uranus XI.[2] It was discovered from the images taken by Voyager 2 on 1986-01-03, and was given the temporary designation S/1986 U 2.[3]
Based on light curves and direct imaging, Juliet is apparently a very elongated object with the lower bound of prolateness being 0.4.[1] Unfortunately, other than its size and orbit, virtually nothing is known about it.
[edit] References
- ^ a b Karkoschka, Erich (2001). "Comprehensive Photometry of the Rings and 16 Satellites of Uranus with the Hubble Space Telescope". Icarus 151: 51–68. DOI:10.1006/icar.2001.6596. Retrieved on 2006-08-05.
- ^ Planet and Satellite Names and Discoverers. Gazetteer of Planetary Nomenclature. USGS Astrogeology (July 21, 2006). Retrieved on 2006-08-06.
- ^ Smith, B. A. (January 16, 1986). IAU Circular No. 4164. Retrieved on 2006-08-06.
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| 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: Rings of Uranus |
