S/2004 S 13
Moon of Saturn
From Wikipedia, the free encyclopedia
S/2004 S 13 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on 4 May 2005 from observations taken between 12 December 2004 and 9 March 2005.
Discoverydate12 December 2004
Observation arc15.60 yr (5,699 days)
| Discovery [1] | |
|---|---|
| Discovered by | Scott S. Sheppard et al. |
| Discovery site | Mauna Kea Obs. |
| Discovery date | 12 December 2004 |
| Orbital characteristics [2] | |
| Epoch 9 August 2022 (JD 2459800.5) | |
| Observation arc | 15.60 yr (5,699 days) |
| 0.1235696 AU (18,486,000 km) | |
| Eccentricity | 0.2713528 |
| –2.57 yr (–938.36 d) | |
| 318.38441° | |
| 0° 23m 1.133s / day | |
| Inclination | 166.99515° (to ecliptic) |
| 235.01103° | |
| 18.66111° | |
| Satellite of | Saturn |
| Group | Norse group |
| Physical characteristics | |
| ≈6 km[3] | |
| Albedo | 0.04 (assumed)[3] |
| 24.5[3] | |
| 16.3[2] | |
S/2004 S 13 is about 6 kilometres in diameter, and orbits Saturn at an average distance of 18,486,000 kilometres in about 938 days, at an inclination of 167.0° to the ecliptic, in a retrograde direction and with an eccentricity of 0.271.[2][4]
This moon was considered lost[5] until its recovery was announced on 12 October 2022.[2]
