| Discovery | |
|---|---|
| Discovered by | A. Kopff |
| Discovery site | Heidelberg Obs. |
| Discovery date | 23 January 1908 |
| Designations | |
| (657) Gunlöd | |
| 1908 BV; 1927 SC; 1929 AM; 1936 YJ | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 107.90 yr (39412 d) |
| Aphelion | 2.9049 AU (434.57 Gm) |
| Perihelion | 2.3187 AU (346.87 Gm) |
| 2.6118 AU (390.72 Gm) | |
| Eccentricity | 0.11223 |
| 4.22yr (1541.7d) | |
| 207.017° | |
| 0° 14m 0.636s / day | |
| Inclination | 10.228° |
| 297.595° | |
| 245.225° | |
| Physical characteristics | |
| 21.26±0.7km | |
| 15.6652 h (0.65272 d) | |
| 0.0415±0.003 | |
| 10.93 | |
657 Gunlöd is a darkbackground asteroid orbiting in the intermediateasteroid belt, approximately 43 kilometres (27 mi) in diameter. It was discovered on 23 January 1908, by astronomerAugust Kopff at theHeidelberg Observatory in southwest Germany. It has analbedo of around 0.042 and arotation period of 15.7 hours.[2][3]
_mathilde.jpg) | This article about a C-type asteroid native to theasteroid belt is astub. You can help Wikipedia byexpanding it. |