| Discovery[1] | |
|---|---|
| Discovered by | A. Mrkos |
| Discovery site | Kleť Obs. |
| Discovery date | 16 September 1982 |
| Designations | |
| (3137) Horky | |
Named after | Horky[1] (Czech hill and village) |
| 1982 SM1 · 1971 UC2 1976 AC | |
| main-belt[1][2] · (inner) background[3] | |
| Orbital characteristics[2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 68.17yr (24,900 d) |
| Aphelion | 2.8571AU |
| Perihelion | 1.9482 AU |
| 2.4026 AU | |
| Eccentricity | 0.1892 |
| 3.72 yr (1,360 d) | |
| 143.98° | |
| 0° 15m 52.92s / day | |
| Inclination | 2.4738° |
| 286.63° | |
| 135.50° | |
| Physical characteristics | |
| 6.685±0.089 km[4] | |
| 0.207±0.030[4] | |
| SMASS =C[2] | |
| 13.3[2] | |
3137 Horky, provisional designation1982 SM1, is a backgroundasteroid from the inner regions of theasteroid belt, approximately 7 kilometers (4.3 miles) in diameter. It was discovered on 16 September 1982, by Czech astronomerAntonín Mrkos at theKleť Observatory in the Czech Republic. The likelystony asteroid was named for a hill near the Czech village ofHorky.[1]
Horky is a non-family asteroid from the main belt'sbackground population.[3] It orbits the Sun in theinner asteroid belt at a distance of 1.9–2.9 AU once every 3 years and 9 months (1,360 days;semi-major axis of 2.4 AU). Its orbit has aneccentricity of 0.19 and aninclination of 2° with respect to theecliptic.[2]
The body'sobservation arc begins with aprecovery taken atPalomar Observatory in November 1949, almost 33 years prior to its official discovery observation at Klet.[1]
On 1 May 2019,Horky will pass15 Eunomia at a distance of 1,440,000 km (0.0096 AU). It is also projected to make close approaches to29 Amphitrite,7 Iris and10 Hygiea.[2]
In theSMASS classification,Horky is a carbonaceousC-type asteroid.[2] However, based on the obtainedalbedo by theWide-field Infrared Survey Explorer (WISE), it is rather a stonyS-type(see below). As of 2018, no rotationallightcurve of this asteroid has been obtained fromphotometric observations. The body'srotation period,pole and shape remain unknown.[2]
According to the survey carried out by theNEOWISE mission of NASA's WISE telescope,Horky measures 6.685 kilometers in diameter and its surface has analbedo of 0.207,[4] which indicates that is likely of astony rather than carbonaceous composition. It has anabsolute magnitude of 13.3.[2]
Thisminor planet was named after a hill and its nearby villageHorky in the Czech Republic, where the discoverer installed his first telescope in 1939.[1] The official naming citation was published by theMinor Planet Center on 29 November 1993 (M.P.C. 22828).[5]
