Surtur (moon)

Summary

Surtur
Discovery
Discovered byScott S. Sheppard
David C. Jewitt
Jan T. Kleyna
Brian G. Marsden
Discovery date26 June 2006
Designations
Designation
Saturn XLVIII
Pronunciation/ˈsɜːrtər/[1]
Named after
Surt
S/2006 S 7
AdjectivesSurtian /ˈsɜːrtiən/[2]
Orbital characteristics[3]
22707000 km
Eccentricity0.451
−1297.7 days
Inclination177.5°
Satellite ofSaturn
GroupNorse group
Physical characteristics
Mean diameter
6+50%
−30%
 km
24.8

Surtur /ˈsɜːrtər/ or Saturn XLVIII (provisional designation S/2006 S 7) is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on June 26, 2006 from observations taken between January and April 2006. It was named after Surt, a leader of the fire giants of Norse mythology.

Surtur is about 6 kilometres in diameter, and orbits Saturn at an average distance of 22,243.6 Mm in 1238.575 days. The Surtian orbit is retrograde, at an inclination of 166.9° to the ecliptic (148.9° to Saturn's equator) and with an eccentricity of 0.3680.

References

  1. ^ "Surt". Dictionary.com Unabridged. Random House.
  2. ^ The oblique stem of the name is Surt. The -ur is the nominative case ending.
  3. ^ S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line
  • Institute for Astronomy Saturn Satellite Data
  • IAUC 8727: Satellites of Saturn[permanent dead link] June 30, 2006 (discovery)
  • MPEC 2006-M45: Eight New Satellites of Saturn June 26, 2006 (discovery and ephemeris)
  • IAUC 8826: Satellites of Jupiter and Saturn April 5, 2007 (naming the moon)[dead link]