(10412) Tsukuyomi Main-belt Asteroid
Discovered on 21 December 1997 by Shimizu, Y., Urata, T. at Nachi-Katsuura.
According to myth, Tsukuyomi-no-mikoto, the Japanese god of night and the moon, was born from the right eye of the god Izanaki. It is said that he made his older sister, the goddess Amaterasu, very angry and caused the separate appearance of the sun in the day and the moon at night.Naming citation (20000320/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tsukuyomi is today
Seen from above the solar system on 2026-10-14: Tsukuyomi is 3.13 au from the Sun and 3.24 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10412 |
| Provisional designation | 1997 YO4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.80 km (#5,222 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.152 |
| Rotation period | 4.12 hours |
| Absolute magnitude (H) | 12.87 |
| Orbital period | 5.16 years |
| Semi-major axis | 2.99 au |
| Perihelion – aphelion | 2.82 – 3.15 au |
| Eccentricity | 0.0543 |
| Inclination | 11.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.86 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.