(4421) Kayor Main-belt Asteroid
Discovered on 14 January 1942 by K. Reinmuth at Heidelberg.
Where Kayor is today
Seen from above the solar system on 2026-10-14: Kayor is 3.15 au from the Sun and 3.27 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4421 |
| Provisional designation | 1942 AC |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.19 km (#5,630 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.244 |
| Rotation period | 91.4 hours |
| Absolute magnitude (H) | 12.41 |
| Orbital period | 4.35 years |
| Semi-major axis | 2.66 au |
| Perihelion – aphelion | 2.15 – 3.18 au |
| Eccentricity | 0.193 |
| Inclination | 16.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.16 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 14 January 1942
More named asteroids discovered by K. Reinmuth
- (796) Sarita
- (799) Gudula
- (864) Aase
- (909) Ulla
- (910) Anneliese
- (911) Agamemnon
- (913) Otila
- (918) Itha
- (920) Rogeria
- (921) Jovita
- (922) Schlutia
- (923) Herluga
← (4420) Alandreev · (4422) Jarre →