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Encyclopedia > Jupiter > Satellites > Elara
THE OUTER SATELLITES OF JUPITER :
"HIMALIA" FAMILY : ELARA (J-7)
Credit: OHP/IMCCE/CNRS
| Characteristics | Values |
|---|---|
| distance to Jupiter | 11 716 000 km |
| average size | 80 km |
| visual magnitude | 16.8 |
| revolution period | 259 days |
| orbital velocity | 3 km/s |
| inclination of the orbit on the equator Jupiter |
25° |
| eccentricity of the orbit | 0.15 to 0.27 |
| density (water=1) | 11 |
| escape velocity | 52 m/s |
| reflectivity (geometric albedo) | 0.03 |
Elara (Jupiter VII) was discovered by Perrine in 1905. Its period of revolution around Jupiter is 259 days. Elara is probably an asteroid captured by Jupiter. Its low reflectivity shows that Elara is from the same family as the carbonaceous asteroids, also very dark.