Orthosie (moon)

Orthosie /ɔːrˈθz/, also known as Jupiter XXXV, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2001, and given the temporary designation S/2001 J 9.[5][1]

Orthosie
Discovery images of Orthosie by the Canada-France-Hawaii Telescope in December 2001
Discovery[1]
Discovered byScott S. Sheppard et al.
Discovery siteMauna Kea Obs.
Discovery date11 December 2001
Designations
Designation
Jupiter XXXV
Pronunciation/ɔːrˈθz/
Named after
Ορθωσία Orthōsia
S/2001 J 9
AdjectivesOrthosian[2] /ɔːrˈθʒiən/[3]
Orbital characteristics[4]
20721000 km
Eccentricity0.281
−622.6 days
326.8°
Inclination145.9°
223.6°
230.5°
Satellite ofJupiter
GroupAnanke group
Physical characteristics
Mean diameter
2 km
23.1

    Orthosie is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 21,075,662 km in 625.07 days, at an inclination of 146.46° to the ecliptic (143° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.3376.[6]

    It was named in August 2003 after Orthosie, the Greek goddess of prosperity and one of the Horae.[7] The Horae (Hours) were daughters of Zeus and Themis.

    Orthosie belongs to the Ananke group.

    References

    1. Brian G. Marsden (May 15, 2003). "MPEC 2002-J54: Eleven New Satellites of Jupiter". International Astronomical Union Minor Planet Center.
    2. William Beloe (1821) Herodotus, translated from the Greek, with notes, vol. 2, p. 451
    3. per 'Orthosia' in Noah Webster (1884) A Practical Dictionary of the English Language
    4. S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
    5. Daniel W. E. Green (May 16, 2002). "IAUC 7900: Satellites of Jupiter". International Astronomical Union.
    6. "Ephemeris of Orthosie, Epoch 2017 Feb. 16.0 TT = JDT 2457800.5". MPC. Retrieved August 13, 2018.
    7. Daniel W. E. Green (August 8, 2003). "IAUC 8177: Satellites of Jupiter, Saturn, Uranus". International Astronomical Union.
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