| Discovery[1] | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 18 January 1975 |
| Designations | |
| (2296) Kugultinov | |
Named after | David Kugultinov (Soviet poet)[2] |
| 1975 BA1 · 1941 FM 1958 DF · 1975 CE 1978 RM1 | |
| main-belt · Themis[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 75.44 yr (27,556 days) |
| Aphelion | 3.7113AU |
| Perihelion | 2.6512 AU |
| 3.1813 AU | |
| Eccentricity | 0.1666 |
| 5.67yr (2,073 days) | |
| 180.53° | |
| 0° 10m 25.32s / day | |
| Inclination | 1.2545° |
| 42.238° | |
| 100.14° | |
| Physical characteristics | |
| Dimensions | 15.10±4.45 km[4] 20.51 km(calculated)[3] 21.07±1.77 km[5] 21.566±0.067 km[6][7] |
| 8.43±0.02h[8] 10 h[9] 16.850±0.004 h[10] | |
| 0.08(assumed)[3] 0.083±0.004[6][7] 0.120±0.021[5] 0.12±0.06[4] | |
| C[3] | |
| 11.3[5] · 11.6[6] · 11.7[1][3] · 11.77±0.23[11] · 1.80[3] · 11.94[4] | |
2296 Kugultinov, provisional designation1975 BA1, is a carbonaceous Themistianasteroid from the outer region of theasteroid belt, approximately 20 kilometers in diameter.
It was discovered on 18 January 1975, by Russian astronomerLyudmila Chernykh at theCrimean Astrophysical Observatory on the Crimean peninsula in Nauchnyj, and named after Soviet poetDavid Nikitich Kugultinov.[2][12]
Kugultinov is a carbonaceousC-type asteroid and member of theThemis family, a dynamical family of outer-belt asteroids with nearly coplanarecliptical orbits. It orbits the Sun in theouter main-belt at a distance of 2.7–3.7 AU once every 5 years and 8 months (2,073 days). Its orbit has aneccentricity of 0.17 and aninclination of 1° with respect to theecliptic.[1]
According to the surveys carried out by theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer and the JapaneseAkari satellite,Kugultinov measures between 15.10 and 21.566 kilometers in diameter and its surface has analbedo between 0.083 and 0.12.[4][5][6][7] TheCollaborative Asteroid Lightcurve Link (CALL) assumes an albedo of 0.08 and calculates a diameter of 20.51 kilometers based anabsolute magnitude of 11.8.[3]
Three different rotationallightcurves ofKugultinov were obtain from photometric observations. The first, fragmentary lightcurve by Roberto Crippa and Federico Manzini in December 2013, gave arotation period of 10 hours with a brightness variation of0.03magnitude (U=1).[9] In April 2015, the result was superseded by observations made by Kim Lang at the Klokkerholm Observatory in Denmark,[a] and by a team at the U.S.University of Maryland using the iTelescope network,[b] obtaining a period of16.850 (U=2) and8.4332±0.0224 hours (U=2+) with an amplitude of 0.23 and 0.19, respectively.[8][10] CALL considers the shorter period solution the better result.[3]
Thisminor planet was named afterDavid Nikitich Kugultinov (1922–2006), prominent Soviet poet and national poet of theRepublic of Kalmykia(also see2287 Kalmykia).[2] The approved naming citation was published by theMinor Planet Center on 2 December 1990 (M.P.C. 17465).[13]
