(5650) Mochihito-o Main-belt Asteroid
Discovered on 10 December 1990 by Natori, A., Urata, T. at Yakiimo.
Prince Mochihito-o (1151-1180) was the third son of emperor Goshirakawa. He was a fount of knowledge, known for his poetry and for playing the Japanese flute. With Minamoto Yorimasa, he fought against the Heike without success.Naming citation (19991123/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Mochihito-o is today
Seen from above the solar system on 2026-10-14: Mochihito-o is 2.68 au from the Sun and 2.97 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5650 |
| Provisional designation | 1990 XK |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.4 km (#4,360 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.259 |
| Rotation period | 19.6 hours |
| Absolute magnitude (H) | 12.12 |
| Orbital period | 4.24 years |
| Semi-major axis | 2.62 au |
| Perihelion – aphelion | 2.34 – 2.90 au |
| Eccentricity | 0.107 |
| Inclination | 12.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.38 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.