| Orbital characteristics 1 | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.358 AU |
| Perihelion distance | 2.047 AU |
| Aphelion distance | 2.668 AU |
| Orbital period | 3.62 years |
| Inclination | 5.51° |
| Eccentricity | 0.132 |
| Physical characteristics 1 | |
| Diameter | 33.6 km |
| Rotation period | 13.27 hours |
| Spectral class 5 | S |
| Abs. magnitude | 9.56 |
| Albedo 4 | 0.235 |
| History 2 | |
| Discoverer | P. M. Henry, 1876 |
169 Zelia is a bright, stony main belt asteroid.
Zelia was discovered by the brothers Paul Henry and Prosper Henry on September 28, 1876. Credit for this discovery was given to Prosper. It is named after a niece of the astronomer Camille Flammarion.
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