(40774) Iwaigame Main-belt Asteroid
Discovered on 11 October 1999 by T. Okuni at Nanyo.
Iwaigame Mountain (height 1417 m), located in the southern part of the Asahi mountain range, is in the National Park of Bandai-Asahi. It is a popular area for Japanese mountain climbers.Naming citation (20120831/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Iwaigame is today
Seen from above the solar system on 2026-10-14: Iwaigame is 3.25 au from the Sun and 4.22 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 40774 |
| Provisional designation | 1999 TH20 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.82 km (#7,851 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0460 |
| Absolute magnitude (H) | 14.97 |
| Orbital period | 4.18 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 1.94 – 3.25 au |
| Eccentricity | 0.254 |
| Inclination | 4.56° |
| Closest distance between its orbit and Earth's (MOID) | 0.938 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.