Belinda (moon)


Image of Belinda acquired by Voyager 2
Belinda viewed by Voyager 2 in 1986
Discovered byStephen P. Synnott / Voyager 2
Discovery dateJanuary 13, 1986
Uranus XIV
Orbital characteristics
Mean orbit radius
75,255.613 ± 0.057 km[2]
Eccentricity0.00007 ± 0.000073[2]
0.623527470 ± 0.000000017 d[2]
Inclination0.03063 ± 0.028° (to Uranus' equator)[2]
Satellite ofUranus
Physical characteristics
Dimensions128 × 64 × 64 km[3]
Mean radius
40.3 ± 8 km[3][4][5]
~25,000 km² [a]
Volume~380,000 km³ [a]
Mass~3.6×1017 kg[a]
Mean density
~1.3 g/cm³ (assumed)[4]
~0.014 m/s²[a]
~0.034 km/s[a]
Albedo0.08 ± 0.01[6]
Temperature~64 K[a]

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 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


Explanatory notes

  1. ^ a b c d e f Calculated on the basis of other parameters.



  • 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.
  • 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.

External links

  • Belinda Profile by NASA's Solar System Exploration
  • Uranus' Known Satellites (by Scott S. Sheppard)