Saturn LXI

Summary

Saturn LXI
Discovery[1]
Discovered bySheppard et al.
Discovery date2019
Designations
S/2004 S 30
S5612a2[2]
Orbital characteristics[2]
20424000 km
Eccentricity0.113
−1084.1 days
Inclination156.3°
Satellite ofSaturn
GroupNorse group
Physical characteristics
Mean diameter
4+50%
−30%
 km
25.4

Saturn LXI, provisionally known as S/2004 S 30, is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, and Jan Kleyna on October 7, 2019 from observations taken between December 12, 2004 and March 21, 2007.[3] It was given its permanent designation in August 2021.[4]

Saturn LXI is about 4 kilometres in diameter, and orbits Saturn at an average distance of 20.396 Gm in 1087.84 days, at 157.5° to the ecliptic, in a retrograde direction and with an eccentricity of 0.113.[3]

Due to an error in the initial announcement of S/2004 S 30, it was announced by the Minor Planet Center with the exact same orbit as S/2004 S 25.[5] The issue was corrected later the same day.[6]

References

  1. ^ Discovery Circumstances from JPL
  2. ^ a b S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line
  3. ^ a b "MPEC 2019-T137 : S/2004 S 30". minorplanetcenter.net. Retrieved 7 October 2019.
  4. ^ "M.P.C. 133821" (PDF). Minor Planet Center. International Astronomical Union. 10 August 2021. Retrieved 21 August 2021.
  5. ^ "MPEC 2019-T132 : S/2004 S 25". minorplanetcenter.net. Retrieved 7 October 2019.
  6. ^ "MPEC 2019-T140 : S/2004 S 30". minorplanetcenter.net. Retrieved 7 October 2019.