(5877) Toshimaihara Main-belt Asteroid
Discovered on 23 March 1990 by E. F. Helin at Palomar.
Toshinori Maihara (b. 1942), an emeritus professor at Kyoto University, has been a leader in infrared astronomy in Japan. He is a codeveloper of Japan's largest new technology telescope, which is due to be installed at Kyoto University's Okayama Observatory. The name was suggested by Y. Yamada.Naming citation (20091202/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Toshimaihara is today
Seen from above the solar system on 2026-10-14: Toshimaihara is 2.34 au from the Sun and 3.09 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5877 |
| Provisional designation | 1990 FP |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.61 km (#8,106 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.337 |
| Rotation period | 8.91 hours |
| Absolute magnitude (H) | 13.18 |
| Orbital period | 4.09 years |
| Semi-major axis | 2.56 au |
| Perihelion – aphelion | 2.25 – 2.87 au |
| Eccentricity | 0.120 |
| Inclination | 16.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.30 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 23 March 1990
More named asteroids discovered by E. F. Helin
- (1982) Cline
- (2048) Dwornik
- (2050) Francis
- (2062) Aten
- (2074) Shoemaker
- (2083) Smither
- (2099) Opik
- (2100) Ra-Shalom
- (2128) Wetherill
- (2143) Jimarnold
- (2220) Hicks
- (2335) James
← (5875) Kuga · (5878) Charlene →