| Discovery[1] | |
|---|---|
| Discovered by | Z. Vávrová |
| Discovery site | Kleť Obs. |
| Discovery date | 23 March 1982 |
| Designations | |
| (2661) Bydžovský | |
Named after | Bohumil Bydžovský (Czech academician)[2] |
| 1982 FC1 · 1950 EE 1969 TG4 · 1971 DO 1974 SU2 · 1979 RM1 | |
| main-belt · (outer) | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.89 yr (24,432 days) |
| Aphelion | 3.3104AU |
| Perihelion | 2.7421 AU |
| 3.0262 AU | |
| Eccentricity | 0.0939 |
| 5.26yr (1,923 days) | |
| 358.62° | |
| 0° 11m 13.92s / day | |
| Inclination | 9.9324° |
| 321.14° | |
| 115.55° | |
| Physical characteristics | |
| Dimensions | 22±9 km(calculated)[3] 30±2 km(est. at0.06)[3] |
| 11.4[1] | |
2661 Bydžovský, provisional designation1982 FC1, is anasteroid from the outer region of theasteroid belt, approximately 30 kilometers in diameter. It was discovered on 23 March 1982, by Czech astronomerZdeňka Vávrová at the South BohemianKleť Observatory in the Czech Republic.[4] The asteroid was named after mathematicianBohumil Bydžovský.[2]
Bydžovský orbits the Sun in theouter main-belt at a distance of 2.7–3.3 AU once every 5 years and 3 months (1,923 days). Its orbit has aneccentricity of 0.09 and aninclination of 10° with respect to theecliptic.[1] It was first identified as1950 EE atHeidelberg Observatory in 1950, extending the body'sobservation arc by 32 years prior to its discovery.[4]
As of 2016,Bydžovský's size,albedo, composition androtation period remain unknown. Based on itsabsolute magnitude of 11.4, its diameter is estimated to measure between 13 and 32 kilometers, assuming an albedo in the range of 0.05 to 0.25.[3] Since most asteroids in the outer main-belt are of acarbonaceous rather than of asilicaceous composition, with low albedos, typically closer to 0.05 than to 0.25, the asteroid's diameter might be on the upper end of NASA's published conversion table, as the lower the reflectivity (albedo), the larger the body's diameter for a given absolute magnitude.[3]
Thisminor planet was named in honour of mathematicianBohumil Bydžovský (1880–1969), chancellor of theCharles University in Prague. He was born in southern Bohemia and became the most eminent citizen of the Czech townVeselí on theLužnice river, after which the minor planets2321 Lužnice and2599 Veselí were named, respectively.[2][5][6] The official naming citation was published by theMinor Planet Center on 6 February 1993 (M.P.C. 21607).[7]
