S/2005 S 5

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S/2005 S 5
Discovery
Discovered by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, Brett J. Gladman, Edward Ashton
Discovery date2005
Orbital characteristics
21,366,200  km (13,276,300 mi) [1]
Eccentricity 0.588
-3.225 yrs (1,177.82 d) [1]
Inclination 169.5° (to the ecliptic)
Satellite of Saturn
Group Norse group
Physical characteristics
3 km
16.4

    S/2005 S 5 is a small and faint natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, Edward Ashton, Brett J. Gladman, Jean-Marc Petit and Mike Alexandersen on May 10, 2023 from observations taken between March 9, 2005 and July 24, 2020. [2]

    S/2005 S 5 was the 100th irregular moon of Saturn ever announced. [3] [2]

    Physical Characteristics, Orbit and Origin

    S/2005 S 5 orbits Saturn at a distance of 21.030 Gm in 1,138.62 days, at an inclination of 172.52, orbits in retrograde direction and eccentricity of 0.510. [2] S/2005 S 5 belongs to the Norse group and a member of the Mundilfari subgroup, possibly a fragment of Mundilfari. [4]

    S/2005 S 5 is estimated to be about 3 kilometers in diameter.

    References

    1. 1 2 "Planetary Satellite Mean Elements". Jet Propulsion Laboratory. California Institute of Technology. Retrieved 10 May 2023.
    2. 1 2 3 "MPEC 2023-J285 : S/2005 S 5". Minor Planet Electronic Circular. Minor Planet Center. Retrieved 10 May 2023.
    3. "S/2005 S 5". Tilmann's Web Site. Tilmann Denk. Retrieved 23 December 2023.
    4. Ashton, Edward; Gladman, Brett; Alexandersen, Mike; Petit, Jean-Marc (10 March 2025). "Retrograde predominance of small saturnian moons reiterates a recent retrograde collisional disruption". Planetary Science Journal. arXiv: 2503.07081 .