Orthosie (moon)

Orthosie /ɔːrˈθoʊziː/, 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.[7][1]

Orthosie
Discovery image of Orthosie by the Canada-France-Hawaii Telescope in December 2001
Discovery [1]
Discovered byScott S. Sheppard
David C. Jewitt
Yanga R. Fernandez
Discovery siteMauna Kea Observatory
Discovery date11 December 2001
Designations
Designation
Jupiter XXXV
Pronunciation/ɔːrˈθoʊziː/
Named after
Ορθωσία Orthōsia
S/2001 J 9
AdjectivesOrthosian[2] /ɔːrˈθoʊʒiən/[3]
Orbital characteristics [4]
Epoch 17 December 2020 (JD 2459200.5)
Observation arc16.29 yr (5,949 days)
0.1415163 AU (21,170,540 km)
Eccentricity0.4837243
–629.29 d
333.61997°
0° 34m 19.449s / day
Inclination148.48740° (to ecliptic)
287.90005°
261.21085°
Satellite ofJupiter
GroupAnanke group
Physical characteristics[5]
Mean diameter
2 km
Albedo0.04 (assumed)
23.1[6]
16.6[4]

    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.[8]

    It was named in August 2003 after Orthosie, the Greek goddess of prosperity and one of the Horae.[9] The Horae (Hours) were daughters of Zeus and Themis.

    Orthosie belongs to the Ananke group.

    References
    1. Brian G. Marsden (15 May 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. "M.P.C. 127087" (PDF). Minor Planet Circular. Minor Planet Center. 17 November 2020.
    5. "Planetary Satellite Physical Parameters". Jet Propulsion Laboratory. 19 February 2015. Retrieved 26 November 2020.
    6. Sheppard, Scott. "Scott S. Sheppard - Jupiter Moons". Department of Terrestrial Magnetism. Carnegie Institution for Science. Retrieved 26 November 2020.
    7. Daniel W. E. Green (16 May 2002). "IAUC 7900: Satellites of Jupiter". International Astronomical Union.
    8. "Ephemeris of Orthosie, Epoch 2017 Feb. 16.0 TT = JDT 2457800.5". MPC. Retrieved 13 August 2018.
    9. Daniel W. E. Green (8 August 2003). "IAUC 8177: Satellites of Jupiter, Saturn, Uranus". International Astronomical Union.
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