A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
Discovery | |
---|---|
Discovered by | Brett J. Gladman John J. Kavelaars Jean-Marc Petit Lynne Allen |
Discovery date | 2003 |
Designations | |
Designation | Jupiter L |
Pronunciation | /ˈhɜːrsiː/ |
Named after | Ἕρση Hersē |
S/2003 J 17 | |
Adjectives | Hersean /hɜːrˈsiːən/ |
Orbital characteristics [1] | |
23097000 km | |
Eccentricity | 0.200 |
−715.4 days | |
41.90° | |
Inclination | 164.2° |
329.0° | |
355.7° | |
Satellite of | Jupiter |
Group | Carme group |
Physical characteristics | |
Mean diameter | 2 km |
23.4 | |
Herse /ˈhɜːrsiː/, or Jupiter L, previously known by its provisional designation of S/2003 J 17, is a natural satellite of Jupiter. It was discovered on 8 February 2003 by the astronomers Brett J. Gladman, John J. Kavelaars, Jean-Marc Petit, and Lynne Allen and also by a team of astronomers at the University of Hawaii.[2][3] It was named after Herse 'dew', by some accounts a daughter of Zeus and Selene the moon in Greek mythology,[4] on 11 November 2009.[5][6] Ersa (Jupiter LXXI) is also named for the same mythological figure.
Herse is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 22,134,000 km in 672.752 days, at a mean inclination of 165° to the ecliptic, in a retrograde direction and with a mean eccentricity of 0.2493.[7]
It is a member of the Carme group, made up of irregular retrograde moons orbiting Jupiter at a distance ranging between 23 and 24 Gm and at an inclination of about 165°.
References
- ^ S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
- ^ Daniel W. E. Green, IAUC 8116: Satellites of Jupiter and Saturn 2003 April 11 (discovery)
- ^ Brian G. Marsden, MPEC 2003-G19: S/2003 J 17 2003 April 3 (discovery and ephemeris)
- ^ Keightley, p. 55; Hard, p. 46; Alcman, Fragment 57.
- ^ Jennifer S. Blue, L Named Herse Archived 2013-05-12 at the Wayback Machine, 2009 November 9
- ^ Jennifer S. Blue, IAUC 9094: Satellite of Jupiter (subscription required) 2009 November 11 (naming)
- ^ Planetary Satellite Mean Orbital Parameters, JPL
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