(28242) Mingantu Main-belt Asteroid
Discovered on 6 January 1999 by Beijing Schmidt CCD Asteroid Program at Xinglong.
Ming Antu (1692-1765?) was a Chinese astronomer and mathematician of the Qing Dynasty. During the decades of his service in the Imperial Observatory, he participated in compiling and editing three very important astronomical works.Naming citation (20020526/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Mingantu is today
Seen from above the solar system on 2026-10-14: Mingantu is 2.70 au from the Sun and 3.69 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 28242 |
| Provisional designation | 1999 AT22 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.64 km (#13,591 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.133 |
| Absolute magnitude (H) | 15.08 |
| Orbital period | 3.81 years |
| Semi-major axis | 2.44 au |
| Perihelion – aphelion | 2.14 – 2.74 au |
| Eccentricity | 0.121 |
| Inclination | 3.86° |
| Closest distance between its orbit and Earth's (MOID) | 1.15 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ming
All asteroids named after someone called Ming