_Kani.png) Shape model ofSalvia from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | Y. Mizuno T. Furuta |
| Discovery site | Kani Obs. (403) |
| Discovery date | 8 October 1989 |
| Designations | |
| (4265) Kani | |
Named after | Kani(Japanese city)[2] |
| 1989 TX · 1940 WM 1955 VJ · 1974 VH2 1983 AP1 · A917 TB | |
| main-belt · (inner)[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 76.33 yr (27,880 days) |
| Aphelion | 2.9147AU |
| Perihelion | 1.9407 AU |
| 2.4277 AU | |
| Eccentricity | 0.2006 |
| 3.78yr (1,382 days) | |
| 140.60° | |
| 0° 15m 38.16s / day | |
| Inclination | 4.3567° |
| 127.25° | |
| 242.75° | |
| Physical characteristics | |
| 14.244±0.160 km[4][5] 15.74±0.76 km[6] | |
| 5.72755±0.00005 h[7] 5.727574±0.000001 h[8] 5.7279±0.0001 h[a][9] 5.7285±0.0011 h[10] | |
| 0.054±0.006[6] 0.056±0.007[4] 0.0565±0.0074[5] | |
| SMASS =C[1][3] | |
| 12.8[5][6] · 12.940±0.006(R)[10] · 13.0[1][3] | |
4265 Kani (prov. designation:1989 TX) is a darkbackground asteroid from the inner regions of theasteroid belt. It was discovered by Japanese astronomersYoshikane Mizuno andToshimasa Furuta at Kani Observatory (403) on 8 October 1989.[11] The carbonaceousC-type asteroid has arotation period of 5.7 hours and measures approximately 14 kilometers (9 miles) in diameter. It was named for the Japanese city ofKani.[2]
Kani is a non-family asteroid of the main belt'sbackground population when applying thehierarchical clustering method to itsproper orbital elements. It orbits the Sun in theinner main-belt at a distance of 1.9–2.9 AU once every 3 years and 9 months (1,382 days). Its orbit has aneccentricity of 0.20 and aninclination of 4° with respect to theecliptic.[1] The body's first observation atCrimea-Simeis dates back to 1917, while the first used observation was made at Turku in 1940, extending the asteroid'sobservation arc by 49 years prior to its discovery.[11]
Thisminor planet was named for the Japanese city ofKani, home of the discoverer, located in the countryside of Japan's Gifu Prefecture, approximately 30 kilometers north of Nagoya, the country's third largest city. Kani is situated on theKiso riverside, which is referred to as theJapan Rhine because of its similarities to the Rhine in Europe.[2] The official naming citation was published by theMinor Planet Center on 11 March 1990 (M.P.C. 16045).[12]
In the Bus–BinzelSMASS classification,Kani is characterized as a common, carbonaceousC-type asteroid.[1]
In October 2008, two rotationallightcurves of this asteroid were obtained fromphotometric observations made at the Golden Hill Observatory in Stourton Caundle and the Palmer Divide Observatory in Colorado Springs, Colorado. The lightcurves gave an identicalrotation period of5.7279±0.0001 hours and a brightness variation of 0.75 ± 0.02 inmagnitude (U=3/3).[9][a] Observations at thePalomar Transient Factory and revised shape-models have since confirmed the body's rotation period.[7][10]
According to the space-based surveys carried out by the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer, the asteroid measures 15.7 and 14.2 kilometers in diameter, respectively.[4][5][6] Conversely, theCollaborative Asteroid Lightcurve Link calculates a diameter of only 7.5 kilometers, due to an assumed albedo of 0.20, which is untypically high for acarbonaceous asteroid.[3]
