(7188) Yoshii Main-belt Asteroid
Discovered on 23 September 1992 by Endate, K., Watanabe, K. at Kitami.
Named in honor of Koichi Yoshii (b. 1914), retired postmaster and amateur astronomer. He was a pioneer in meteor photography in Japan. In the 1930s, when the sensitivity of photographic emulsion was still very low, he succeeded in photographing 86 meteors with his homemade camera. Name proposed by the discoverers following a suggestion by A. Fujii, Y. Yabu and T. Sato.Naming citation (19981005/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Yoshii is today
Seen from above the solar system on 2026-10-14: Yoshii is 2.51 au from the Sun and 3.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7188 |
| Provisional designation | 1992 SF1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.13 km (#12,444 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.261 |
| Rotation period | 260 hours |
| Absolute magnitude (H) | 14.06 |
| Orbital period | 3.25 years |
| Semi-major axis | 2.19 au |
| Perihelion – aphelion | 1.85 – 2.53 au |
| Eccentricity | 0.155 |
| Inclination | 3.95° |
| Closest distance between its orbit and Earth's (MOID) | 0.858 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 23 September 1992
- (7250) Kinoshita
- (8377) Elmerreese
- (8378) Sweeney
- (8382) Mann
- (8526) Takeuchiyukou
- (10351) Seiichisato
- (10801) Luneburg
- (11074) Kuniwake
- (11075) Donhoff
- (11915) Nishiinoue
- (12329) Liebermann
- (13561) Kudogou
More named asteroids discovered by Endate, K., Watanabe, K.
- (4042) Okhotsk
- (4126) Mashu
- (4460) Bihoro
- (4491) Otaru
- (4497) Taguchi
- (4508) Takatsuki
- (4547) Massachusetts
- (4585) Ainonai
- (4607) Seilandfarm
- (4641) Ayako
- (4712) Iwaizumi
- (4773) Hayakawa
← (7187) Isobe · (7189) Kuniko →