| Orbital characteristics 1 | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.859 AU |
| Perihelion distance | 2.443 AU |
| Aphelion distance | 3.274 AU |
| Orbital period | 4.83 years |
| Inclination | 12.13° |
| Eccentricity | 0.145 |
| Physical characteristics 1 | |
| Diameter | 69.2 km |
| Rotation period | 5.75 hours |
| Spectral class 5 | S |
| Abs. magnitude | 8.48 |
| Albedo 4 | 0.149 |
| History 2 | |
| Discoverer | J. C. Watson, 1877 |
174 Phaedra is a sizable, rocky main belt asteroid.
It was discovered by J. C. Watson on September 2, 1877 and named after Phaedra, the tragic lovelorn queen in Greek mythology.
Lightcurve data obtained from Phaedra indicates a rather irregular or elongated body.
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