393 Lampetia
Main-belt asteroid
From Wikipedia, the free encyclopedia
393 Lampetia is a fairly large main belt asteroid that was discovered by German astronomer Max Wolf on 4 November 1894 in Heidelberg. It has an unusually low rotation rate, with a period estimated at 38.7 hours and a brightness variation of 0.14 in magnitude.[4]
Orbital diagram | |
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery date | 4 November 1894 |
| Designations | |
| (393) Lampetia | |
| Pronunciation | /læmËpiËÊiÉ/[1][2] |
Named after | Lampetia |
| 1894 BG | |
| Main belt | |
| Symbol | .svg){kind=small} |
| Orbital characteristics[3] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 112.56 yr (41112 d) |
| Aphelion | 3.6980 AU (553.21 Gm) |
| Perihelion | 1.8568 AU (277.77 Gm) |
| 2.7774 AU (415.49 Gm) | |
| Eccentricity | 0.33146 |
| 4.63 yr (1690.6 d) (4.63 yr) | |
| 173.245° | |
| 0° 12m 46.584s / day | |
| Inclination | 14.879° |
| 212.460° | |
| 2023-Aug-15 | |
| 90.824° | |
| Physical characteristics | |
| Dimensions | 96.89±31.4 km |
| 38.7 h (1.61 d)[3][4] | |
| 0.0829±0.099 | |
| 8.39 | |
In 2000, the asteroid was detected by radar from the Arecibo Observatory at a distance of 0.98 AU. The resulting data yielded an effective diameter of 125 ± 20 km.[5]
It comes to opposition at apparent magnitude 10.5 on 6 July 2023[6] and then perihelion on 15 August 2023.[3]
_mathilde.jpg){kind=small}