| Discovery[1] | |
|---|---|
| Discovered by | G. Kulin |
| Discovery site | Konkoly Obs. |
| Discovery date | 6 January 1940 |
| Designations | |
| (10258) Sárneczky | |
Named after | Krisztián Sárneczky[2] (Hungarian astronomer) |
| 1940 AB · 1988 RZ4 1989 WK7 · 1989 WL6 1998 KD53 | |
| main-belt · (outer) background[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 77.74 yr (28,393 days) |
| Aphelion | 3.4567 AU |
| Perihelion | 2.8649 AU |
| 3.1608 AU | |
| Eccentricity | 0.0936 |
| 5.62 yr (2,053 days) | |
| 339.90° | |
| 0° 10m 31.44s / day | |
| Inclination | 14.192° |
| 128.78° | |
| 291.32° | |
| Physical characteristics | |
| Dimensions | 14.275±0.264km[4] |
| 0.151±0.026[4] | |
| 12.1[1] | |
10258 Sárneczky, provisional designation 1940 AB, is a background asteroid from the outer regions of the asteroid belt, approximately 14 kilometers in diameter. It was discovered on 6 January 1940, by Hungarian astronomer György Kulin at the Konkoly Observatory, near Budapest.[2] The asteroid was named after Hungarian astronomer Krisztián Sárneczky.[2]
Sárneczky is non-family asteroid from the main-belt's background population.[3] It orbits the Sun in the outer asteroid belt at a distance of 2.9–3.5 AU once every 5 years and 7 months (2,053 days). Its orbit has an eccentricity of 0.09 and an inclination of 14° with respect to the ecliptic.[1] The body's observation arc begins with its official discovery observation at Konkoly in 1940.[2]
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Sárneczky measures 14.275 kilometers in diameter and its surface has an albedo of 0.151.[4] The asteroid has an absolute magnitude of 12.1.[1]
As of 2017, no rotational lightcurveofSárneczky has been obtained from photometric observations. The body's rotation period, shape and poles remain unknown.[5]
This minor planet was named after Krisztián Sárneczky (born 1974), a Hungarian amateur astronomer and discoverer of minor planets and supernovae. He is a board member of the Hungarian Astronomical Association (HAA).[2] The official naming citation was published by the Minor Planet Center on 5 October 2017 (M.P.C. 106499).[6]
