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Sponde

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(Redirected from Sponde (moon)) Moon of Jupiter This article is about the astronomical body. For the Greek spirit of libations named Sponde, see Sponde (Hora). For the French poet, see Jean de Sponde. For the metrical foot, see spondee.

Sponde
Discovery
Discovery images of Sponde by the Canada-France-Hawaii Telescope in December 2001
Discovered by	Scott S. Sheppard et al.
Discovery site	Mauna Kea Obs.
Discovery date	9 December 2001
Designations
Designation	Jupiter XXXVI
Pronunciation	/ˈspɒndiː/
Named after	Σπονδή Spondē
Alternative names	S/2001 J 5
Adjectives	Spondean /spɒnˈdiːən/
Orbital characteristics
Semi-major axis	23487000 km
Eccentricity	0.312
Orbital period (sidereal)	−734.89 days
Inclination	151.0°
Satellite of	Jupiter
Group	Pasiphae group
Physical characteristics
Mean diameter	2 km
Apparent magnitude	23.0
Absolute magnitude (H)	16.7

Sponde /ˈspɒndiː/, 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.

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). 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°.

References

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

v t e Moons of Jupiter
Listed in increasing approximate distance from Jupiter
Inner moons	Metis Adrastea Amalthea Thebe
Galilean moons	Io Europa Ganymede Callisto
Themisto	Themisto
Himalia group (9)	Leda Ersa S/2018 J 2 Himalia Pandia Lysithea Elara S/2011 J 3 Dia
Carpo group (2)	S/2018 J 4 Carpo
Valetudo	Valetudo
Ananke group (26)	Euporie Jupiter LV Eupheme S/2021 J 3 Jupiter LII Jupiter LIV Mneme Euanthe S/2003 J 16 Harpalyke Orthosie S/2022 J 3 Helike S/2021 J 2 Praxidike Jupiter LXIV S/2021 J 1 S/2003 J 12 Jupiter LXVIII Thelxinoe Thyone S/2003 J 2 Ananke Iocaste Hermippe Jupiter LXX
Carme group (30)	S/2022 J 1 S/2022 J 2 S/2016 J 3 Pasithee Jupiter LXIX S/2021 J 6 S/2003 J 24 Chaldene Jupiter LXIII Isonoe S/2021 J 4 Kallichore Erinome Kale Eirene Aitne Eukelade Arche Taygete Jupiter LXXII Carme Herse Jupiter LXI Jupiter LI S/2003 J 9 Jupiter LXVI Kalyke S/2018 J 3 S/2021 J 5 S/2003 J 10
Pasiphae group (18)	Philophrosyne Eurydome Jupiter LVI S/2003 J 4 S/2016 J 4 Jupiter LXVII Hegemone Pasiphae Sponde Megaclite Cyllene Sinope Jupiter LIX Aoede Autonoe Callirrhoe S/2003 J 23 Kore
See also	Rings of Jupiter Jupiter's moons in fiction
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