| Discovery[1] | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 8 October 1969 |
| Designations | |
| (3963) Paradzhanov | |
Named after | Sergei Parajanov (Soviet film director)[2] |
| 1969 TP2 · 1979 HS3 1984 QR1 | |
| main-belt · (inner) Nysa[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 47.56 yr (17,373 days) |
| Aphelion | 2.9198AU |
| Perihelion | 1.9608 AU |
| 2.4403 AU | |
| Eccentricity | 0.1965 |
| 3.81yr (1,392 days) | |
| 197.62° | |
| 0° 15m 30.6s / day | |
| Inclination | 3.2758° |
| 109.71° | |
| 285.99° | |
| Physical characteristics | |
| Dimensions | 5.779±0.375 km[4] |
| 0.192±0.023[4] | |
| 13.5[1] | |
3963 Paradzhanov, provisional designation1969 TP2, is a Nysianasteroid from the inner regions of theasteroid belt, approximately 6 kilometers in diameter. It was discovered on 8 October 1969, by astronomerLyudmila Chernykh at theCrimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.[5] The asteroid was named after Soviet film directorSergei Parajanov (Sargis Paradzhanov) in 1996.[2]
Paradzhanov is a member of theNysa family (405),[3] the asteroid belt's largestasteroid family. The low-inclination family is located in theinner main-belt and named after44 Nysa. It is better described as the "Nysa-Polana complex" because it consists of twoalbedo-groups and at least three collisional families: Nysa, Polana, Eulalia, named after142 Polana and495 Eulalia. These are difficult to distinguish as they are dynamically overlapping with different but varying albedos.[6][7]: 23 Paradzhanov has a relatively high albedo(see below) which places it into thestony Nysian subgroup of the "Nysa-Polana complex".
It orbits the Sun at a distance of 2.0–2.9 AU once every 3 years and 10 months (1,392 days). Its orbit has aneccentricity of 0.20 and aninclination of 3° with respect to theecliptic.[1] The body'sobservation arc begins with its identification as1979 HS3 at the discovering observatory in Nauchnyj in March 1979, almost 10 years after its official discovery observation.[5]
As of 2017, no rotationallightcurve ofParadzhanov has been obtained from photometric observations. The asteroid'srotation period, poles and shape remain unknown.[1][8]
According to the survey carried out by theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Paradzhanov measures 5.779 kilometers in diameter and its surface has analbedo of 0.192.[4]
Thisminor planet was named in memory of Georgian–Soviet film director Sergei Parajanov (1924–1990) (Sargis Paradzhanov). In 1965, he became internationally acknowledged with his feature filmShadows of Forgotten Ancestors, but also a target of the Soviet regime. The official naming citation was published by theMinor Planet Center on 3 May 1996 (M.P.C. 27126).[9]
