View source for Sponde

{{Short description|Moon of Jupiter}}
{{About|the astronomical body|the Greek spirit of libations named Sponde|Sponde (Hora)|the French poet|Jean de Sponde|the [[metrical foot]]|spondee}}
{{Infobox planet
| name = Sponde
| image = Sponde-discovery-CFHT-annotated.gif
| image_scale =
| caption = Discovery images of Sponde by the [[Canada-France-Hawaii Telescope]] in December 2001
| pronounced = {{IPAc-en|ˈ|s|p|ɒ|n|d|iː}}
| adjective = Spondean {{IPAc-en|s|p|ɒ|n|ˈ|d|iː|ə|n}}
| named_after = [[Sponde (mythology)|Σπονδή]] ''Spondē''
| discovery_ref = <ref name="MPEC"/>
| discoverer = [[Scott S. Sheppard]] et al.
| discovered = 9 December 2001
| discovery_site = [[Mauna Kea Observatory|Mauna Kea Obs.]]
| mpc_name = Jupiter XXXVI
| alt_names = S/2001 J 5
| orbit_ref = <ref>[https://sites.google.com/carnegiescience.edu/sheppard/moons/jupitermoons S.S. Sheppard (2019), Moons of Jupiter, ''Carnegie Science'', on line]</ref>
| semimajor = {{val|23487000|u=km}}
| inclination = 151.0°
| eccentricity = 0.312
| period = −734.89 days<ref name="MPC111777"/>
| satellite_of = [[Jupiter]]
| group = [[Pasiphae group]]
| magnitude = 23.0
| abs_magnitude = 16.7<ref name="MPC111777"/>
| mean_diameter = 2 km
}}

'''Sponde''' {{IPAc-en|ˈ|s|p|ɒ|n|d|iː}}, also known as '''{{nowrap|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 '''{{nowrap|S/2001 J 5}}'''.<ref>[http://www.cbat.eps.harvard.edu/iauc/07900/07900.html IAUC 7900: ''Satellites of Jupiter''] 2002 May 16 (discovery)</ref><ref name="MPEC">[http://cfa-www.harvard.edu/mpec/K02/K02J54.html MPEC 2002-J54: ''Eleven New Satellites of Jupiter''] 2002 May 15 (discovery and ephemeris)</ref>

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 motion|retrograde]] direction and with an [[eccentricity (orbit)|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).<ref>[http://cbat.eps.harvard.edu/iauc/08100/08177.html IAUC 8177: ''Satellites of Jupiter, Saturn, Uranus''] {{webarchive|url=https://web.archive.org/web/20080709055841/http://cfa-www.harvard.edu/iauc/08100/08177.html |date=2008-07-09 }} 2003 August 8 (naming the moon)</ref> 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 [[inclination]]s ranging between 144.5° and 158.3°.

==References==
{{reflist | refs=

<ref name="MPC111777">{{cite web
  |title      = M.P.C. 111777
  |url        = https://minorplanetcenter.net/iau/ECS/MPCArchive/2018/MPC_20180925.pdf
  |work       = Minor Planet Circular
  |publisher  = Minor Planet Center
  |date       = 25 September 2018}}</ref>

}}

{{Moons of Jupiter}}

{{DEFAULTSORT:Sponde (Moon)}}
[[Category:Pasiphae group]]
[[Category:Moons of Jupiter]]
[[Category:Irregular satellites]]
[[Category:Discoveries by Scott S. Sheppard]]
[[Category:Astronomical objects discovered in 2001]]
[[Category:Moons with a retrograde orbit]]


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