| Discovery[1] | |
|---|---|
| Discovered by | T. Smirnova |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | October 22, 1968 (1968-10-22) |
| Designations | |
| (2009) Voloshina | |
Named after | Vera Danilovna Voloshina (Soviet WWII partisan)[2] |
| 1968 UL · 1926 FF 1929 TO · 1957 WF2 1959 EC · 1970 EL1 1973 SP6 · 1973 SU3 | |
| main-belt · (outer) | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 90.65 yr (33,111 days) |
| Aphelion | 3.5594AU |
| Perihelion | 2.6725 AU |
| 3.1160 AU | |
| Eccentricity | 0.1423 |
| 5.50yr (2,009 days) | |
| 261.36° | |
| Inclination | 2.8609° |
| 107.55° | |
| 6.2038° | |
| Physical characteristics | |
| Dimensions | 21.19±9.05 km[3] 26.558±0.476 km[4][5] 28.04±0.72 km[6] 34.67 km(derived)[7] 34.8 km(IRAS)[8] |
| 2.94±0.010 h[9] 5.896±0.002h[10] 5.907±0.0547 h[11] | |
| 0.0487(derived)[7] 0.0698±0.009[8] 0.11±0.11[3] 0.118±0.007[6] 0.120±0.024[4][5] | |
| C[7][12] | |
| 10.8[4][6] · 10.870±0.120(R)[9] · 10.944±0.002(R)[11] · 11.2[1][3][7] · 11.29±0.32[12] | |
2009 Voloshina, provisional designation1968 UL, is a carbonaceousasteroid from the outer regions of theasteroid belt, approximately 27 kilometers in diameter.
It was discovered on 22 October 1968, by Russian astronomerTamara Smirnova at theCrimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named for WWII partisanVera Voloshina.[2][13]
Voloshina orbits the Sun in theouter main-belt at a distance of 2.7–3.6 AU once every 5 years and 6 months (2,009 days). Its orbit has aneccentricity of 0.14 and aninclination of 3° with respect to theecliptic.[1]
In March 1926,Voloshina was first observed as1926 FF atYerkes Observatory and one day later atHeidelberg Observatory. Itsobservation arc begins at Heidelberg, 62 years prior to its official discovery observation.[13]
Voloshina has been characterized as a carbonaceousC-type asteroid byPan-STARRS photometric survey.[12]
In May 2009, a rotationallightcurve ofVoloshina was obtained from photometric observations by astronomers at the Oakley Southern Sky Observatory (E09) in Australia. Lightcurve analysis gave arotation period of 5.896 hours with a brightness variation of 0.40magnitude (U=3-).[10]
In January and February 2014, astronomers at thePalomar Transient Factory found a period of2.94 and5.907 hours with an amplitude of 0.32 and 0.27 magnitude, respectively (U=2/2).[9][11]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite, and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Voloshina measures between 21.19 and 34.8 kilometers in diameter and its surface has analbedo between 0.0698 and 0.120.[3][4][5][6][8]
TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.0487 and calculates a diameter of 34.67 kilometers based on anabsolute magnitude of 11.2.[7]
Anoccultation of a star by 2009 Voloshina was observed in 2021.
Thisminor planet was named in honor of Vera Danilovna Voloshina (1919–1941), a partisan of the SovietGreat Patriotic War (1941–1945), also known as theEastern Front of the Second World War.[2] The officialnaming citation was published by theMinor Planet Center on 1 September 1978 (M.P.C. 4481).[14]
