| 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 | 2.9198 AU |
| Perihelion | 1.9608 AU |
| 2.4403 AU | |
| Eccentricity | 0.1965 |
| 3.81 yr (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 designation 1969 TP2, is a Nysian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 8 October 1969, by astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. [5] The asteroid was named after Soviet film director Sergei Parajanov (Sargis Paradzhanov) in 1996. [2]
Paradzhanov is a member of the Nysa family ( 405 ), [3] the asteroid belt's largest asteroid family. The low-inclination family is located in the inner main-belt and named after 44 Nysa. It is better described as the "Nysa-Polana complex" because it consists of two albedo-groups and at least three collisional families: Nysa, Polana, Eulalia, named after 142 Polana and 495 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 the stony 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 an eccentricity of 0.20 and an inclination of 3° with respect to the ecliptic. [1] The body's observation arc begins with its identification as 1979 HS3 at the discovering observatory in Nauchnyj in March 1979, almost 10 years after its official discovery observation. [5]
As of 2017, no rotational lightcurve of Paradzhanov has been obtained from photometric observations. The asteroid's rotation period, poles and shape remain unknown. [1] [8]
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Paradzhanov measures 5.779 kilometers in diameter and its surface has an albedo of 0.192. [4]
This minor 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 film Shadows of Forgotten Ancestors , but also a target of the Soviet regime. The official naming citation was published by the Minor Planet Center on 3 May 1996 ( M.P.C. 27126). [9]
