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1 See also  





2 References  





3 External links  














Stephano (moon)






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Stephano
Discovery image of Stephano (encircled)
Discovery
Discovered by
  • Brett J. Gladman
  • Matthew J. Holman
  • Jean-Marc Petit
  • Hans Scholl
  • Discovery dateJuly 18, 1999
    Designations

    Designation

    Uranus XX
    Pronunciation/ˈstɛfən/ STEF-ən-oh[1][2]
    AdjectivesStephanonian /ˌstɛfəˈnniən/ STEF-ə-NOH-nee-ən[3]
    Orbital characteristics

    Mean orbit radius

    8,004,000 km[4][5]
    Eccentricity0.2292[5]

    Orbital period (sidereal)

    677.37 d
    Inclination141.81° (to the ecliptic),144°[4]
    Satellite ofUranus
    GroupCaliban group
    Physical characteristics

    Mean radius

    16 km(estimate)[6]

    Surface area

    ~3,000 km2 (estimate)
    Volume~20,000 km3 (estimate)
    Mass~2.2×1016 kg (estimate)

    Mean density

    ~1.3 g/cm3 (assumed)

    Surface gravity

    ~0.0041 m/s2 (estimate)

    Escape velocity

    ~0.013 km/s (estimate)

    Synodic rotation period

    ?

    Axial tilt

    ?
    Albedo0.04 (assumed)[6]
    Temperature~65 K (estimate)

    Stephano (/ˈstɛfən/ STEF-ən-oh) is a retrograde irregular satelliteofUranus. It was discovered by Brett J. Gladman, et al. in 1999, and given the provisional designation S/1999 U 2.[7][8][9][10][11]

    Confirmed as Uranus XX, it was named after the drunken butlerinWilliam Shakespeare's play The Tempest in August 2000.[12]

    The orbital parameters suggest that it may belong to the same dynamic cluster as Caliban, suggesting common origin.[13]

    Animation of Stephano's orbit around Uranus.
       Uranus  ·    Sycorax ·    Francisco  ·    Caliban  ·    Stephano  ·    Trinculo
    Animation of discovery images taken by the CFHT in July 1999

    See also[edit]

    References[edit]

    1. ^ Shakespeare Recording Society (1995) The Tempest (audio CD)
  • ^ Benjamin Smith (1903) The Century Dictionary and Cyclopedia
  • ^ Lessing (1914) How the Ancients Represented Death
  • ^ a b Sheppard, Jewitt & Kleyna 2005, p. 523, Table 3.
  • ^ a b Yeomans, Donald K. (2007-06-28). "Planetary Satellite Mean Orbital Parameters". JPL/NASA. Retrieved 2008-01-19.
  • ^ a b Sheppard, Jewitt & Kleyna 2005, p. 523, Table 3 ... ri (km) ... 16 ... i Radius of satellite assuming a geometric albedo of 0.04.
  • ^ Gladman, B. J.; Kavelaars, J. J.; Holman, M. J., Petit, J.-M.; Scholl, H.; Nicholson, P. D.; and Burns, J. A.; The Discovery of Uranus XIX, XX, and XXI, Icarus, 147 (2000), pp. 320–324
  • ^ Marsden, Brian G.; Probable New Satellites of Uranus, IAUC 7230, 1999 July 27
  • ^ Marsden, Brian G.; Probable New Satellites of Uranus, IAUC 7248, 1999 September 4
  • ^ Marsden, Brian G.; S/1999 U 1, S/1999 U 2 and S/1999 U 3, IAUC 7385, 2000 March 24
  • ^ Marsden, Brian G.; S/1999 U 2, IAUC 7473, 2000 August 5
  • ^ Marsden, Brian G.; Satellites of Uranus, IAUC 7479, 2000 August 21
  • ^ Grav, Tommy; Holman, Matthew J.; Gladman, Brett J.; and Aksnes, Kaare; Photometric survey of the irregular satellites,Icarus, 166 (2003), pp. 33-45. arXiv:astro-ph/0301016
  • External links[edit]


    Retrieved from "https://en.wikipedia.org/w/index.php?title=Stephano_(moon)&oldid=1211553659"

    Categories: 
    Caliban group
    Moons of Uranus
    Irregular satellites
    Discoveries by Matthew J. Holman
    Discoveries by Brett J. Gladman
    Astronomical objects discovered in 1999
    Moons with a retrograde orbit
    Hidden categories: 
    Articles with short description
    Short description matches Wikidata
     



    This page was last edited on 3 March 2024, at 04:24 (UTC).

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