(915) Cosette Main-belt Asteroid
Discovered on 14 December 1918 by F. Gonnessiat at Algiers.
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Where Cosette is today
Seen from above the solar system on 2026-10-14: Cosette is 2.54 au from the Sun and 3.43 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 915 |
| Provisional designation | A918 XB |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.7 km (#4,217 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.255 |
| Rotation period | 4.45 hours |
| Absolute magnitude (H) | 11.71 |
| Orbital period | 3.32 years |
| Semi-major axis | 2.23 au |
| Perihelion – aphelion | 1.92 – 2.54 au |
| Eccentricity | 0.140 |
| Inclination | 5.55° |
| Closest distance between its orbit and Earth's (MOID) | 0.928 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by F. Gonnessiat
← (914) Palisana · (916) America →