Astronomy:Beli (moon)
| Discovery[1] | |
|---|---|
| Discovered by | Sheppard et al. |
| Discovery date | 2019 |
| Designations | |
| Named after | Beli |
| Saturn LXI 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 |
Beli (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] On 24 August 2022, it was named after Beli, a jötunn from Norse mythology.[5] He is killed by Freyr with the antler of a hart (stag). According to John Lindow, the myth of Beli is partially lost. Some scholars suggest that he may be the brother of Freyr's wife Gerðr, although this is uncertain.[6][7]
Beli 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 Beli, it was announced by the Minor Planet Center with the same orbit as Gerd.[8] The issue was corrected later the same day.[9]
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.
- ↑ "Names Approved for 10 Small Satellites of Saturn". USGS. 24 August 2022. https://astrogeology.usgs.gov/news/nomenclature/names-approved-for-10-small-satellites-of-saturn.
- ↑ Orchard, Andy (1997) (in en). Dictionary of Norse Myth and Legend. Cassell. p. 16. ISBN 978-0-304-34520-5. https://books.google.com/books?id=uIujQgAACAAJ.
- ↑ Lindow, John (2002) (in en). Norse Mythology: A Guide to Gods, Heroes, Rituals, and Beliefs. Oxford University Press. p. 73. ISBN 978-0-19-983969-8. https://books.google.com/books?id=KlT7tv3eMSwC.
- ↑ "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.
.jpg)
 |  |
