(31671) Masatoshi Main-belt Asteroid
Discovered on 13 May 1999 by A. Nakamura at Kuma Kogen.
Masatoshi Nakamura (b. 1951), born in Miyagi prefecture, is an actor and singer. Since successfully auditioning for the hero in Warera Seishun in 1974, he has appeared in a number of movies and television dramas. As a singer, he has released more than 50 records, including his greatest hit “Fureai”.Naming citation (20030501/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Masatoshi is today
Seen from above the solar system on 2026-10-14: Masatoshi is 2.99 au from the Sun and 2.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31671 |
| Provisional designation | 1999 JY7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.35 km (#8,441 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0760 |
| Absolute magnitude (H) | 14.62 |
| Orbital period | 5.19 years |
| Semi-major axis | 3.00 au |
| Perihelion – aphelion | 2.40 – 3.59 au |
| Eccentricity | 0.199 |
| Inclination | 2.06° |
| Closest distance between its orbit and Earth's (MOID) | 1.39 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 13 May 1999
- (11417) Chughtai
- (11418) Williamwang
- (11743) Jachowski
- (17130) Alexzhang
- (17147) Mariafields
- (17149) Victoriagraf
- (17151) Zanderhill
- (18012) Marsland
- (18013) Shedletsky
- (18015) Semenkovich
- (18016) Grondahl
- (18019) Dascoli