Belinda (moon)

From Wikipedia, the free encyclopedia
Belinda
Belinda.gif
Belinda viewed by Voyager 2 in 1986
Discovery
Discovered by Stephen P. Synnott / Voyager 2
Discovery date January 13, 1986
Orbital characteristics
Mean orbit radius
75,255.613 ± 0.057 km[1]
Eccentricity 0.00007 ± 0.000073[1]
0.623527470 ± 0.000000017 d[1]
Inclination 0.03063 ± 0.028° (to Uranus' equator)[1]
Satellite of Uranus
Physical characteristics
Dimensions 128 × 64 × 64 km[2]
Mean radius
40.3 ± 8 km[2][3][4]
~25,000 km² [a]
Volume ~380,000 km³ [a]
Mass ~3.6×1017 kg[a]
Mean density
~1.3 g/cm³ (assumed)[3]
~0.014 m/s²[a]
~0.034 km/s[a]
synchronous[2]
zero[2]
Albedo 0.08 ± 0.01[5]
Temperature ~64 K[a]

Belinda (/bəˈlɪndə/ bə-LIN-də) 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.[6] It is named after the heroine of Alexander Pope's The Rape of the Lock. It is also designated Uranus XIV.[7]

Belinda belongs to the Portia group of satellites, which also includes Bianca, Cressida, Desdemona, Portia, Juliet, Cupid, Rosalind and Perdita.[5] These satellites have similar orbits and photometric properties.[5] Other than its orbit,[1] radius of 45 km[2] and geometric albedo of 0.08[5] 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.[2] Its surface is grey in color.[2]

See also

References

Explanatory notes

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

Citations

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. 
  • 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)
Retrieved from "https://en.wikipedia.org/w/index.php?title=Belinda_(moon)&oldid=795202912"
This content was retrieved from Wikipedia : http://en.wikipedia.org/wiki/Belinda_(moon)
This page is based on the copyrighted Wikipedia article "Belinda (moon)"; it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC-BY-SA). You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA