Sponde

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Sponde
Sponde-discovery-CFHT-annotated.gif
Discovery images of Sponde by the Canada-France-Hawaii Telescope in December 2001
Discovery [1]
Discovered by Scott S. Sheppard et al.
Discovery site Mauna Kea Obs.
Discovery date9 December 2001
Designations
Designation
Jupiter XXXVI
Pronunciation /ˈspɒnd/
Named after
Σπονδή Spondē
S/2001 J 5
Adjectives Spondean /spɒnˈdən/
Orbital characteristics [2]
23487000 km
Eccentricity 0.312
−734.89 days [3]
Inclination 151.0°
Satellite of Jupiter
Group Pasiphae group
Physical characteristics
2 km
23.0
16.7 [3]

    Sponde /ˈspɒnd/ , also known as Jupiter XXXVI, 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 5. [4] [1]

    Sponde is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 24,253,000 km in 734.89 days, at an inclination of 154° to the ecliptic (156° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.443.

    It was named in August 2003 after one of the Horae (Hours), which presided over the seventh hour (libations poured after lunch). [5] The Hours, goddesses of the time of day but also of the seasons, were daughters of Zeus (Jupiter) and Themis.

    It belongs to the Pasiphae group, irregular retrograde moons orbiting Jupiter at distances ranging between 22.8 and 24.1 Gm, and with inclinations ranging between 144.5° and 158.3°.

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    References

    1. 1 2 MPEC 2002-J54: Eleven New Satellites of Jupiter 2002 May 15 (discovery and ephemeris)
    2. S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
    3. 1 2 "M.P.C. 111777" (PDF). Minor Planet Circular. Minor Planet Center. 25 September 2018.
    4. IAUC 7900: Satellites of Jupiter 2002 May 16 (discovery)
    5. IAUC 8177: Satellites of Jupiter, Saturn, Uranus Archived 2008-07-09 at the Wayback Machine 2003 August 8 (naming the moon)