| Discovery[1] | |
|---|---|
| Discovered by | P. Pravec M. Wolf |
| Discovery site | Ondřejov Obs. |
| Discovery date | 18 March 1999 |
| Designations | |
| (13390) Bouška | |
Named after | Jiří Bouška(astronomer)[2] |
| 1999 FQ3 · 1981 RH 1987 DN2 | |
| main-belt · Eunomia[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 35.75 yr (13,059 days) |
| Aphelion | 3.0394AU |
| Perihelion | 2.1243 AU |
| 2.5819 AU | |
| Eccentricity | 0.1772 |
| 4.15yr (1,515 days) | |
| 212.31° | |
| 0° 14m 15.36s / day | |
| Inclination | 13.246° |
| 148.55° | |
| 250.99° | |
| Physical characteristics | |
| Dimensions | 6.48 km(calculated)[3] 7.04±0.26 km[4] 7.470±0.076[5] 7.524±0.100 km[6] |
| 7.7572±0.0027h[7] | |
| 0.21(assumed)[3] 0.2597±0.0445[6] 0.263±0.021[5] 0.270±0.048[4] | |
| S[3] | |
| 12.7[6] · 12.80[4] · 12.804±0.002(R)[7] · 12.9[1] · 13.25±0.41[3][8] | |
13390 Bouška, provisional designation1999 FQ3, is a stony Eunomiaasteroid from the central region of theasteroid belt, approximately 7 kilometers in diameter. It was discovered by Czech astronomersPetr Pravec andMarek Wolf atOndřejov Observatory in the Czech Republic on 18 March 1999.[9] It was named after astronomerJiří Bouška.[2]
Bouška is a member of theEunomia family, a large group ofS-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun in thecentral main-belt at a distance of 2.1–3.0 AU once every 4 years and 2 months (1,515 days). Its orbit has aneccentricity of 0.18 and aninclination of 13° with respect to theecliptic.[1] The body'sobservation arc begins 18 years prior to its official discovery observation, with its identification as1981 RH at Lowell'sAnderson Mesa Station in 1981.[9]
A rotationallightcurve ofBouška was obtained from photometric observations made at the U.S.Palomar Transient Factory, California, in January 2012. It gave arotation period of7.7572±0.0027 hours with a brightness variation of 0.30 inmagnitude (U=2).[7]
According to the surveys carried out by NASA's space-basedWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Bouška measures 7.5 and 7.0 kilometers in diameter and its surface has analbedo of 0.26 and 0.27, respectively.[4][5][6] TheCollaborative Asteroid Lightcurve Link assumes an albedo of 0.21 – derived from15 Eunomia, the family's largest member and namesake – and calculates a diameter of 6.5 kilometers.[3]
Thisminor planet was named in honor of Jiří Bouška (born 1925), Czech astronomer and retired professor atCharles University, whose research concentrated on the material found between the planets of the Solar System.[2]
Bouška has been a teacher of several generations of Czech astronomers, including one of the discoverers. For decades he has also been the editor of theCzech Astronomical Yearbook and the popular astronomy journalRíše hvězd (The Realm of Stars), after which the minor planet4090 Říšehvězd is named.[2] The approved naming citation was published by theMinor Planet Center on 20 March 2000 (M.P.C. 39659).[10]
