| Discovery [1] | |
|---|---|
| Discovered by | N. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 22 September 1973 |
| Designations | |
| (2644) Victor Jara | |
Named after | Víctor Jara [1] (Chilean singer and composer) |
| 1973 SO2 · 1979 HD | |
| main-belt [1][2] · (inner) background [3] | |
| Orbital characteristics [2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 64.04yr (23,389 d) |
| Aphelion | 2.5286AU |
| Perihelion | 1.8116 AU |
| 2.1701 AU | |
| Eccentricity | 0.1652 |
| 3.20 yr (1,168 d) | |
| 10.705° | |
| 0° 18m 29.88s / day | |
| Inclination | 2.6810° |
| 347.62° | |
| 309.35° | |
| Physical characteristics | |
| 5.914±0.223 km[4] | |
| 0.153±0.021[4] | |
| 13.3[2] | |
2644 Victor Jara, provisional designation1973 SO2, is anasteroid from the inner regions of theasteroid belt, approximately 6 kilometers (3.7 miles) in diameter. It was discovered on 22 September 1973, by Soviet-Russian astronomerNikolai Chernykh at theCrimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. It was named after Chilean singer and composerVíctor Jara.[1]
Victor Jara is a non-family asteroid of the main belt'sbackground population.[3] It orbits the Sun in theinner main-belt at a distance of 1.8–2.5 AU once every 3 years and 2 months (1,168 days;semi-major axis of 2.17 AU). Its orbit has aneccentricity of 0.17 and aninclination of 3° with respect to theecliptic.[2]
The body'sobservation arc begins with aprecovery taken at thePalomar Observatory in April 1954, or nearly 20 years prior to its official discovery observation.[1]
According to the survey carried out by theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Victor Jara measures 5.914 kilometers in diameter and its surface has analbedo of 0.153.[4]
As of 2018, no rotationallightcurve ofVictor Jara has been obtained fromphotometric observations. The body'srotation period,pole and shape remain unknown.[2]
Thisminor planet was named by the discoverer after Chilean folk singer and activistVíctor Jara, who was assassinated on 16 September 1973, just six days prior to the planet's discovery. The official naming citation was published by theMinor Planet Center on 15 May 1984 (M.P.C. 8800).[5]
Víctor Jara, a prominent communist political activist in Chile, toured theSoviet Union in the 1960s and praised its culture, its scientific achievements and the friendliness of its working people. He was tortured and murdered shortly after the1973 Chilean coup d'état led by Army Commander-in-ChiefAugusto Pinochet, that ended the government of the socialistSalvador Allende.
