(47293) Masamitsu Main-belt Asteroid
Discovered on 16 November 1999 by A. Nakamura at Kuma Kogen.
Masamitsu Nakamura (b. 1965) is an amateur astronomer and medical technologist at the Hamamatsu Rosai Hospital. During his 25-year visual search for comets he discovered C/1994 N1 (Nakamura-Nishimura-Machholz).Naming citation (20040713/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Masamitsu is today
Seen from above the solar system on 2026-10-14: Masamitsu is 2.89 au from the Sun and 3.69 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 47293 |
| Provisional designation | 1999 WO |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.93 |
| Orbital period | 3.67 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.83 – 2.93 au |
| Eccentricity | 0.232 |
| Inclination | 3.29° |
| Closest distance between its orbit and Earth's (MOID) | 0.817 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.