| Discovery[1] | |
|---|---|
| Discovered by | L. G. Karachkina |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 23 December 1982 |
| Designations | |
| (3345) Tarkovskij | |
Named after | Andrei Tarkovsky (Soviet film-maker)[2] |
| 1982 YC1 · 1938 QC 1952 BD2 · 1969 OB | |
| main-belt · (inner) background | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 78.39 yr (28,633 days) |
| Aphelion | 2.9425AU |
| Perihelion | 2.0032 AU |
| 2.4729 AU | |
| Eccentricity | 0.1899 |
| 3.89yr (1,420 days) | |
| 296.00° | |
| 0° 15m 12.6s / day | |
| Inclination | 15.850° |
| 304.89° | |
| 194.43° | |
| Physical characteristics | |
| Dimensions | 20.746±0.129 km[3] 24±2 km[4] |
| 187±3 h[5][6] | |
| 0.029±0.002[3] 0.0688±0.015[4] | |
| SMASS =C[1] | |
| 11.8[1] | |
3345 Tarkovskij, provisional designation1982 YC1, is acarbonaceous backgroundasteroid from the inner regions of theasteroid belt, approximately 22 kilometers (14 miles) in diameter. It was discovered on 23 December 1982, by Russian astronomerLyudmila Karachkina at theCrimean Astrophysical Observatory in Nauchnyj, on theCrimean peninsula, and named after filmmakerAndrei Tarkovsky.[2][7] TheC-type asteroid is aslow rotator with arotation period of 187 hours.[6]
Tarkovskij is a non-family asteroid from the main belt'sbackground population. It orbits the Sun in theinner main-belt at a distance of 2.0–2.9 AU once every 3 years and 11 months (1,420 days). Its orbit has aneccentricity of 0.19 and aninclination of 16° with respect to theecliptic.[1]
It was first observed as1938 QC at theHeidelberg Observatory in 1938, extending the body'sobservation arc by 44 years prior to its official discovery observation at Nauchnyj.[7]
Thisminor planet named after the Soviet theater director and film-makerAndrei Tarkovsky (1932—1986).[2] The approved naming citation was published by theMinor Planet Center on 31 May 1988 (M.P.C. 13176).[8]
In theSMASS classification, Tarkovskij is a carbonaceousC-type asteroid, unusual for inner-belt asteroids which are typically of astony composition.[1]
In January 2014, a rotationallightcurve of Tarkovskij was obtained from photometric observations taken at theBelgrade Observatory and the CS3 DanHenge Observatory (U80). Lightcurve analysis gave arotation period of 187 hours with a brightness variation of 0.59magnitude (U=3-).[5] This makes it aslow rotator, as most asteroids have periods shorter than 20 hours.
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite, and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission, Tarkovskij measures between 21.02 and 24.17 kilometers in diameter and its surface has analbedo between 0.0407 and 0.096.[6] TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.0526 and adopts a diameter of 24.17 kilometers with on anabsolute magnitude of 11.9 from the IRAS results.[4][6]
