(258) Tyche Main-belt Asteroid
Discovered on 4 May 1886 by R. Luther at Dusseldorf.
👶 Tyche as a baby name🐶 Tyche as a dog name
Where Tyche is today
Seen from above the solar system on 2026-10-14: Tyche is 2.38 au from the Sun and 2.64 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 258 |
| Provisional designation | A886 JA |
| Orbit class | Main-belt Asteroid |
| Diameter | 64.8 km (#530 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.168 |
| Rotation period | 10.0 hours |
| Spectral type | S |
| Absolute magnitude (H) | 8.24 |
| Orbital period | 4.23 years |
| Semi-major axis | 2.61 au |
| Perihelion – aphelion | 2.08 – 3.15 au |
| Eccentricity | 0.205 |
| Inclination | 14.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.09 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by R. Luther
- (17) Thetis
- (26) Proserpina
- (28) Bellona
- (35) Leukothea
- (37) Fides
- (47) Aglaja
- (53) Kalypso
- (57) Mnemosyne
- (58) Concordia
- (68) Leto
- (71) Niobe
- (78) Diana
← (257) Silesia · (259) Aletheia →