| Discovery[1] | |
|---|---|
| Discovered by | C. Kowal |
| Discovery site | Palomar Obs. |
| Discovery date | 24 December 1976 |
| Designations | |
| (2134) Dennispalm | |
Named after | C. Dennis Palm[2] |
| 1976 YB | |
| main-belt | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 61.16 yr (22,337 days) |
| Aphelion | 3.3111AU |
| Perihelion | 1.9594 AU |
| 2.6353 AU | |
| Eccentricity | 0.2565 |
| 4.28yr (1,563 days) | |
| 161.22° | |
| 0° 13m 49.44s / day | |
| Inclination | 31.367° |
| 11.606° | |
| 120.22° | |
| Physical characteristics | |
| Dimensions | 6.007±0.257[3] |
| 4.114 h (0.1714 d)[4] 5.2±0.7[5] | |
| 0.339±0.037[3] | |
| Tholen = DSU:[1][4] B–V = 0.936[1] | |
| 13.1[1] | |
2134 Dennispalm, provisional designation1976 YB is amain-beltasteroid discovered on 24 December 1976, byCharles T. Kowal atPalomar Observatory.[6][7]
Photometric observations made in 2003 at the Carbuncle Hill Observatory nearProvidence, Rhode Island, give a synodicrotation period of 4.114 ± 0.002 hours. Thelight curve shows a brightness variation of 0.37 ± 0.05 inmagnitude.[7]
It is named in honor ofC. Dennis Palm (1945–1974), who worked as a night assistant at Caltech's48" Schmidt telescope on Palomar Mountain in the 1960s and later at Caltech's 60" reflecting telescope, also on Palomar. The officialnaming citation was published by theMinor Planet Center on 1 July 1979 (M.P.C. 4788).[2][8]
