(19983) Inagekiyokazu Main-belt Asteroid
Discovered on 18 February 1990 by Matsuyama, M., Watanabe, K. at Kushiro.
Kiyokazu Inage (b. 1950) is a Japanese amateur astronomer and popularizer of astronomy in Kagawa Prefecture. His main interests are nebulae, star clusters, solar eclipses and deep space observations, and he is well known for his beautiful stellar photographs.Naming citation (MPC batch dated 2020-08-07), IAU / Minor Planet Center, via NASA/JPL
Where Inagekiyokazu is today
Seen from above the solar system on 2026-10-14: Inagekiyokazu is 2.31 au from the Sun and 2.81 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19983 |
| Provisional designation | 1990 DW |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.39 km (#11,852 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.335 |
| Rotation period | 126 hours |
| Absolute magnitude (H) | 13.41 |
| Orbital period | 3.69 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 2.25 – 2.53 au |
| Eccentricity | 0.0573 |
| Inclination | 6.38° |
| Closest distance between its orbit and Earth's (MOID) | 1.28 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.