Belinda (moon)
Belinda is an inner satellite of the planet Uranus. Belinda was discovered from the images taken by Voyager 2 on 13 January 1986 and was given the temporary designation S/1986 U 5.[7] It is named after the heroine of Alexander Pope's The Rape of the Lock. It is also designated Uranus XIV.[8]
Belinda viewed by Voyager 2 in 1986 | |
Discovery | |
---|---|
Discovered by | Stephen P. Synnott / Voyager 2 |
Discovery date | January 13, 1986 |
Designations | |
Designation | Uranus XIV |
Pronunciation | /bɛˈlɪndə/[1] |
Adjectives | Belindian |
Orbital characteristics | |
Mean orbit radius | 75,255.613 ± 0.057 km[2] |
Eccentricity | 0.00007 ± 0.000073[2] |
0.623527470 ± 0.000000017 d[2] | |
Inclination | 0.03063 ± 0.028° (to Uranus' equator)[2] |
Satellite of | Uranus |
Physical characteristics | |
Dimensions | 128 × 64 × 64 km[3] |
Mean radius | 40.3 ± 8 km[3][4][5] |
~25,000 km² [lower-alpha 1] | |
Volume | ~380,000 km³ [lower-alpha 1] |
Mass | ~3.6×1017 kg[lower-alpha 1] |
Mean density | ~1.3 g/cm³ (assumed)[4] |
~0.014 m/s² [lower-alpha 1] | |
~0.034 km/s[lower-alpha 1] | |
synchronous[3] | |
zero[3] | |
Albedo | 0.08 ± 0.01[6] |
Temperature | ~64 K[lower-alpha 1] |
Belinda belongs to the Portia group of satellites, which also includes Bianca, Cressida, Desdemona, Portia, Juliet, Cupid, Rosalind and Perdita.[6] These satellites have similar orbits and photometric properties.[6] Other than its orbit,[2] radius of 45 km[3] and geometric albedo of 0.08[6] virtually nothing is known about it.
The Voyager 2 images show Belinda as an elongated object with its major axis pointing towards Uranus. The moon is very elongated, with its short axis 0.5 ± 0.1 times the long axis.[3] Its surface is grey in color.[3]
See also
References
Explanatory notes
- Calculated on the basis of other parameters.
Citations
- Benjamin Smith (1903) The Century Dictionary and Cyclopedia
- Jacobson 1998.
- Karkoschka, Voyager 2001.
- JPL Solar System Dynamics.
- Williams 2007.
- Karkoschka, Hubble 2001.
- IAUC 4164.
- USGS: Planet and Satellite Names and Discoverers.
Sources
- Jacobson, R. A. (1998). "The Orbits of the Inner Uranian Satellites From Hubble Space Telescope and Voyager 2 Observations". The Astronomical Journal. 115 (3): 1195–1199. Bibcode:1998AJ....115.1195J. doi:10.1086/300263.
- Karkoschka, Erich (2001). "Voyager's Eleventh Discovery of a Satellite of Uranus and Photometry and the First Size Measurements of Nine Satellites". Icarus. 151 (1): 69–77. Bibcode:2001Icar..151...69K. doi:10.1006/icar.2001.6597.
- "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 18 October 2010. Retrieved 2012-01-27.
- Williams, Dr. David R. (23 November 2007). "Uranian Satellite Fact Sheet". NASA (National Space Science Data Center). Retrieved 2012-01-27.CS1 maint: ref=harv (link)
- Karkoschka, Erich (2001). "Comprehensive Photometry of the Rings and 16 Satellites of Uranus with the Hubble Space Telescope". Icarus. 151 (1): 51–68. Bibcode:2001Icar..151...51K. doi:10.1006/icar.2001.6596.
- Marsden, Brian G. (1986-01-16). "Satellites of Uranus". IAU Circular. 4164. Retrieved 2012-01-27.
- USGS/IAU (July 21, 2006). "Planet and Satellite Names and Discoverers". Gazetteer of Planetary Nomenclature. USGS Astrogeology. Retrieved 2012-01-27.