| Discovery [1] | |
|---|---|
| Discovered by | E. F. Helin E. Shoemaker P. D. Wilder |
| Discovery site | Palomar Obs. |
| Discovery date | 15 May 1982 |
| Designations | |
| (4525) Johnbauer | |
Named after | John Bauer (San Diego City College)[2] |
| 1982 JB3 · 1951 YF 1988 XX | |
| main-belt · (middle) Mitidika [3] | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 60.94 yr (22,260 days) |
| Aphelion | 3.0906AU |
| Perihelion | 2.0552 AU |
| 2.5729 AU | |
| Eccentricity | 0.2012 |
| 4.13yr (1,507 days) | |
| 308.59° | |
| 0° 14m 19.68s / day | |
| Inclination | 13.529° |
| 72.981° | |
| 30.621° | |
| Physical characteristics | |
| Dimensions | 10.118±0.050 km[4] |
| 0.034±0.005[4] | |
| 13.5[1] | |
4525 Johnbauer, provisional designation1982 JB3, is dark Mitidikaasteroid from the central regions of theasteroid belt, approximately 10 kilometers in diameter. It was discovered on 15 May 1982, by astronomer coupleEleanor andEugene Shoemaker, as well asPeter Wilder at thePalomar Observatory in California, United States. The asteroid was named after John Bauer, physics teacher at San Diego City College.[2]
Johnbauer has been identified as a member of theMitidika family, a dispersedasteroid family of typically carbonaceousC-type asteroids. The family is named after2262 Mitidika (diameter of 9 km) and consists of 653 known members, the largest ones being404 Arsinoë (95 km) and5079 Brubeck (17 km).[3][5]: 23
It orbits the Sun in thecentral main-belt at a distance of 2.1–3.1 AU once every 4 years and 2 months (1,507 days). Its orbit has aneccentricity of 0.20 and aninclination of 14° with respect to theecliptic.[1]
The asteroid was first identified as1951 YF at theMcDonald Observatory in December 1951. The body'sobservation arc begins more than 26 years prior to its official discovery observation, with aprecovery taken at Palomar in November 1955.[2]
As of 2017, no rotationallightcurve ofJohnbauer has been obtained from photometric observations. The body'srotation period, spin axis and shape remains unknown.[1][6]
According to the survey carried out by theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Johnbauer measures 10.118 kilometers in diameter and its surface has a lowalbedo of 0.034.[4]
Thisminor planet was named in memory of John Bauer (1932–2002), a long-time teacher of astronomy and physics at San Diego City College in San Diego, California, who over the course of forty years (1962-2002), inspired hundreds of students to pursue professional and academic careers in astronomy and physics. The name was suggested by N. Butler. The official naming citation was published by theMinor Planet Center on 13 April 2006 (M.P.C. 56611).[7]
