| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 14 October 1884 |
| Designations | |
MPC designation | (244) Sita |
| Pronunciation | /ˈsiːtə/ |
| A900 UA, 1957 KT, 1976 HY, 1979 FL3 | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 130.93 yr (47824 d) |
| Aphelion | 2.47317 AU (369.981 Gm) |
| Perihelion | 1.87531 AU (280.542 Gm) |
Semi-major axis | 2.17424 AU (325.262 Gm) |
| Eccentricity | 0.13749 |
| 3.21 yr (1171.0 d) | |
| 46.3767° | |
| 0° 18m 26.737s / day | |
| Inclination | 2.84423° |
| 208.982° | |
| 166.029° | |
| Physical characteristics | |
Mean diameter | 10.95±0.8 km [1] 11 km [2] |
| Mass | ~2×1015 (estimate) |
Mean density | ~2.7 g/cm³ (estimate) [3] |
| 129.51 h (5.396 d) | |
| 0.1941±0.033 [1] 0.194 [2] | |
| S [4] | |
| 11.9 | |
Sita (minor planet designation: 244 Sita) is a background asteroid from the inner region of the asteroid belt, approximately 11 kilometers (6.8 miles) in diameter. It was discovered on 14 October 1884, by an Austrian astronomer Johann Palisa in the Vienna Observatory.
References
- ^ a b c "244 Sita". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ a b "Supplemental IRAS Minor Planet Survey". Archived from the original on 23 June 2006.
- ^ G. A. Krasinsky, E. V. Pitjeva, M. V. Vasilyev, E. I. Yagudina (2002). "Hidden Mass in the Asteroid Belt". Icarus. 158: 98. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837.
- ^ PDS spectral class data
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- 244 Sita at AstDyS-2, Asteroids—Dynamic Site
- 244 Sita at the JPL Small-Body Database
