Astronomy:Desdemona (moon)

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Short description: Moon of Uranus
There is also a minor planet called 666 Desdemona.
Desdemona
Desdemonamoon.png
Discovery image of Desdemona
Discovery
Discovered byStephen P. Synnott / Voyager 2
Discovery dateJanuary 13, 1986
Designations
Designation
Uranus X
Pronunciation/dɛzdəˈmoʊnə/[1]
AdjectivesDesdemonan,[2] Desdemonian,[3] Desdemonean[4] /dɛzdəˈmoʊn(i)ən/
Orbital characteristics
Mean orbit radius62,658.364 ± 0.047 km[5]
Eccentricity0.00013 ± 0.000070[5]
Orbital period0.473649597 ± 0.000000014 d[5]
Inclination0.11252 ± 0.037° (to Uranus' equator)[5]
Satellite ofUranus
Physical characteristics
Dimensions90 × 54 × 54 km[6]
Mean radius32.0 ± 4 km[6][7][8]
Surface area~14,500 km2[lower-alpha 1]
Volume~164,000 km3[lower-alpha 1]
Mass~1.8×1017 kg[lower-alpha 1]
Mean density~1.3 g/cm3 (assumed)[7]
~0.011 m/s2[lower-alpha 1]
~0.027 km/s[lower-alpha 1]
Rotation periodsynchronous[6]
Axial tiltzero[6]
Albedo
Physics~64 K[lower-alpha 1]


Desdemona is an inner satellite of Uranus. It was discovered from the images taken by Voyager 2 on 13 January 1986, and was given the temporary designation S/1986 U 6.[10] Desdemona is named after the wife of Othello in William Shakespeare's play Othello. It is also designated Uranus X.[11]

Desdemona belongs to Portia Group of satellites, which also includes Bianca, Cressida, Juliet, Portia, Rosalind, Cupid, Belinda and Perdita.[9] These satellites have similar orbits and photometric properties.[9] Other than its orbit,[5] radius of 32 km[6] and geometric albedo of 0.08[9] virtually nothing is known about Desdemona.

In the Voyager 2 images Desdemona appears as an elongated object, the major axis pointing towards Uranus. The ratio of axes of Desdemona's prolate spheroid is 0.6 ± 0.3.[6] Its surface is grey in color.[6]

Desdemona may collide with one of its neighboring moons Cressida or Juliet within the next 100 million years.[12]

See also

References

Explanatory notes

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Calculated on the basis of other parameters.

Citations

  1. ↑ Benjamin Smith (1903) The Century Dictionary and Cyclopedia
  2. ↑ Harris & Lazzari (1997) Shakespearean criticism
  3. ↑ Daileader (2005) Racism, misogyny, and the Othello myth
  4. ↑ Genova (1997) Power, gender, values
  5. ↑ 5.0 5.1 5.2 5.3 5.4 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. doi:10.1086/300263. Bibcode: 1998AJ....115.1195J. 
  6. ↑ 6.0 6.1 6.2 6.3 6.4 6.5 6.6 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. doi:10.1006/icar.2001.6597. Bibcode: 2001Icar..151...69K. 
  7. ↑ 7.0 7.1 7.2 "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 24 October 2008. http://ssd.jpl.nasa.gov/?sat_phys_par. 
  8. ↑ 8.0 8.1 Williams, Dr. David R. (23 November 2007). "Uranian Satellite Fact Sheet". NASA (National Space Science Data Center). http://nssdc.gsfc.nasa.gov/planetary/factsheet/uraniansatfact.html. 
  9. ↑ 9.0 9.1 9.2 9.3 Karkoschka, Erich (2001). "Comprehensive Photometry of the Rings and 16 Satellites of Uranus with the Hubble Space Telescope". Icarus 151 (1): 51–68. doi:10.1006/icar.2001.6596. Bibcode: 2001Icar..151...51K. 
  10. ↑ Smith, B. A. (January 16, 1986). "Satellites of Uranus". IAU Circular 4164. http://www.cbat.eps.harvard.edu/iauc/04100/04164.html#Item1. Retrieved 29 October 2011. 
  11. ↑ "Planet and Satellite Names and Discoverers". Gazetteer of Planetary Nomenclature. USGS Astrogeology. July 21, 2006. http://planetarynames.wr.usgs.gov/Page/Planets. 
  12. ↑ Duncan, Martin J.; Lissauer, Jack J. (1997). "Orbital Stability of the Uranian Satellite System". Icarus 125 (1): 1–12. doi:10.1006/icar.1996.5568. Bibcode: 1997Icar..125....1D. 

External links



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