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Alexandra family (of asteroids)
A small family of main-belt asteroids lying at a mean distance of 2.6 to 2.7 AU from the Sun, with orbital inclinations of 11 to 12° and a variety of compositions, including representatives from classes C, G, and T. The prototype, 54 Alexandra, was discovered in 1858 by Hermann Goldschmidt.
Data for (54) Alexandra
| Diameter | 165 km |
| Spectral class | C |
| Semimajor axis | 2.710 AU |
| Perihelion | 2.18 AU |
| Aphelion | 3.25 AU |
| Eccentricity | 0.199 |
| Inclination | 11.8° |
Related category
• ASTEROIDS AND OTHER MINOR PLANETS: TYPES AND GROUPS
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