(899) Jokaste Main-belt Asteroid
Discovered on 3 August 1918 by M. F. Wolf at Heidelberg.
Where Jokaste is today
Seen from above the solar system on 2026-10-14: Jokaste is 3.18 au from the Sun and 3.88 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 899 |
| Provisional designation | A918 PH |
| Orbit class | Main-belt Asteroid |
| Diameter | 31.0 km (#1,317 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.161 |
| Rotation period | 6.25 hours |
| Spectral type | XB |
| Absolute magnitude (H) | 10.24 |
| Orbital period | 4.95 years |
| Semi-major axis | 2.91 au |
| Perihelion – aphelion | 2.32 – 3.49 au |
| Eccentricity | 0.201 |
| Inclination | 12.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.35 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.