Herse_(moon)

Herse (moon)

Herse (moon)

Natural satellite of Jupiter

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.

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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

  1. [1]
    S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
  2. [2]
    Daniel W. E. Green, IAUC 8116: Satellites of Jupiter and Saturn 2003 April 11 (discovery)
  3. [3]
    Brian G. Marsden, MPEC 2003-G19: S/2003 J 17 2003 April 3 (discovery and ephemeris)
  4. [4]
    Keightley, p. 55; Hard, p. 46; Alcman, Fragment 57.
  5. [5]
    Jennifer S. Blue, L Named Herse Archived 2013-05-12 at the Wayback Machine, 2009 November 9
  6. [6]
    Jennifer S. Blue, IAUC 9094: Satellite of Jupiter (subscription required) 2009 November 11 (naming)
  7. [7]
    Planetary Satellite Mean Orbital Parameters, JPL
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