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Encyclopedia > Jupiter > Satellites > Amalthea

Amalthea (Jupiter V) was discovered by Barnard in 1892. This satellite is quite bright but difficult to observe because of the proximity of the planet Jupiter.
| Characteristics | Values |
|---|---|
| distance to Jupiter | 181 000 km |
| mean size | 170 km |
| visual magnitude | 14.1 |
| period of revolution | 12 heures |
| orbital velocity | 26 km/s |
| inclination of the orbit on the Jovian equator |
0.4° |
| eccentricity of the orbit | 0.003 |
| density (water=1) | ? |
| escape velocity | 84 m/s |
| reflectivity | 0.05 |