1859 Kovalevskaya
| Discovery | |
|---|---|
| Discovered by | L. V. Zhuravleva |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 4 September 1972 |
| Designations | |
| MPC designation | 1859 Kovalevskaya |
|
Named after
|
Sofia Kovalevskaya (mathematician) |
|
1972 RS2 · 1932 RD 1941 BQ · 1942 HH 1949 PU · 1949 QW 1950 TM4 · 1953 EK1 1966 PC1 · A915 TK |
|
| main-belt · (outer) | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 100.68 yr (36,775 days) |
| Aphelion | 3.5294 AU |
| Perihelion | 2.8909 AU |
| 3.2101 AU | |
| Eccentricity | 0.0995 |
| 5.75 yr (2,101 days) | |
| 4.4964° | |
| 0° 10m 17.04s / day | |
| Inclination | 7.7011° |
| 343.31° | |
| 244.93° | |
| Physical characteristics | |
| Dimensions | 34.40 km (calculated) 44.634±0.097 46.02±1.6 km (IRAS:14) 48.798±0.424 km |
| 11.1084±0.0066 h | |
|
0.0427±0.0077 0.053±0.006 0.057 (assumed) 0.0694±0.005 (IRAS:14) |
|
| C | |
| 10.6 · 10.7 · 11.05 · 11.1084±0.0066 (R) | |
1859 Kovalevskaya, provisional designation 1972 RS2, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 4 September 1972, by Russian–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.
The dark C-type asteroid orbits the Sun at a distance of 2.9–3.5 AU once every 5 years and 9 months (2,101 days). Its orbit has an eccentricity of 0.10 and an inclination of 8° with respect to the ecliptic. The first precovery was taken at Heidelberg Observatory in 1915, extending the asteroid's observation arc by 57 years prior to its discovery.
In September 2013, photometric measurements at the U.S. Palomar Transient Factory, California, rendered a rotational light-curve with a period of 11.1084±0.0066 hours and a brightness variation of 0.13 in magnitude (U=2). According to the surveys carried out by the Infrared Astronomical Satellite (IRAS) and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures between 44.6 and 48.8 kilometers in diameter, and its surface has a low albedo between 0.043 and 0.069. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a smaller diameter of 34.4 kilometers, based on a weaker absolute magnitude of 11.05.
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