Astronomy:Saturn LXI
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Short description: Moon of Saturn
| Discovery[1] | |
|---|---|
| Discovered by | Sheppard et al. |
| Discovery date | 2019 |
| Designations | |
| S/2004 S 30 S5612a2[2] | |
| Orbital characteristics [2] | |
| 20424000 km | |
| Eccentricity | 0.113 |
| Orbital period | −1084.1 days |
| Inclination | 156.3° |
| Satellite of | Saturn |
| Group | Norse group |
| Physical characteristics | |
| Mean diameter | 4+50% −30% km |
| Apparent magnitude | 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
- ↑ Discovery Circumstances from JPL
- ↑ 2.0 2.1 S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line
- ↑ 3.0 3.1 "MPEC 2019-T137 : S/2004 S 30". https://minorplanetcenter.net/mpec/K19/K19TD7.html. Retrieved 7 October 2019.
- ↑ "M.P.C. 133821". International Astronomical Union. 10 August 2021. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/2021/MPC_20210810.pdf.
- ↑ "MPEC 2019-T132 : S/2004 S 25". https://minorplanetcenter.net/mpec/K19/K19TD2.html. Retrieved 7 October 2019.
- ↑ "MPEC 2019-T140 : S/2004 S 30". https://minorplanetcenter.net/mpec/K19/K19TE0.html. Retrieved 7 October 2019.
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