| Minor Planet Designation | 25 Phocaea | | Asteroid Group | Main Asteroid Belt | | Asteroid Family | Phocaea family | | Composition Class | S-type (stony) | | Orbital Period | 3 years, 262 days | | Distance from the Sun | Semi-Major Axis: 359,079,000 km (2.40 AU)
Perihelion: 267,861,000 km (1.79 AU)
Aphelion: 450,297,000 km (3.01 AU)
| | Eccentricity | 0.2540 | | Diameter (Mean) | 61.1 kilometres | | Notes | A stony asteroid of the inner Asteroid Belt, Phocaea gives its name to the Phocaea Family, a swarm of related asteroids originating in an ancient collision. With a mean diameter of over 60km, Phocaea is by far the largest member of the family, with few other members exceeding 10km. |
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