Hegemone (moon): Difference between revisions

Hegemone
Discovery
Discovered by	Scott Sheppard et al.
Discovery date	2003
Designations
Designation	Jupiter XXXIX
Pronunciation	/hɪˈdʒɛməniː/
Named after	Ἡγεμόνη Hēgemonē
Alternative names	S/2003 J 8
Adjectives	Hegemonean /ˌhɛdʒɪməˈniːən/
Orbital characteristics
Semi-major axis	23947000 km
Eccentricity	0.328
Orbital period (sidereal)	−739.6 days
Inclination	155.2°
Satellite of	Jupiter
Group	Pasiphae group
Physical characteristics
Mean diameter	3 km
Apparent magnitude	22.8

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Revision as of 04:59, 9 March 2020

Hegemone /hɪˈdʒɛməniː/, also known as Jupiter XXXIX, 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 2003, and given the temporary designation S/2003 J 8.^[2]^[3]

Hegemone is about 3 kilometres in diameter, and orbits Jupiter at an average distance of 23,703,000 km in 745.500 days, at an inclination of 153° to the ecliptic (151° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.4077.

It was named in March 2005 after Hegemone, one of the Graces, and a daughter of Zeus (Jupiter).^[4]

Hegemone 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

^ S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
^ IAUC 8088: S/2003 J 8 2003 March 6 (discovery)
^ MPEC 2003-E24: S/2003 J 8 2003 March 6 (discovery and ephemeris)
^ IAUC 8502: Satellites of Jupiter 2005 March 30 (naming the moon)

[1] S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line

[2] IAUC 8088: S/2003 J 8 2003 March 6 (discovery)

[3] MPEC 2003-E24: S/2003 J 8 2003 March 6 (discovery and ephemeris)

[4] IAUC 8502: Satellites of Jupiter 2005 March 30 (naming the moon)

[1]

[2]

[3]

[4]

@@ Line 8: / Line 8: @@
 | discovered = 2003
 | mpc_name = Jupiter XXXIX
-| alt_names = S/2003 J8
+| alt_names = S/2003 J 8
 | orbit_ref = &thinsp;<ref>[https://sites.google.com/carnegiescience.edu/sheppard/moons/jupitermoons S.S. Sheppard (2019), Moons of Jupiter, ''Carnegie Science'', on line]</ref>
 | semimajor = {{val|23947000|u=km}}

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
Category