(9816) von Matt Main-belt Asteroid
Discovered on 24 September 1960 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Elisabeth, Baroness von Matt (1762-1814), was the only female Austrian astronomer of her time with an international reputation. She worked mainly in positional astronomy. Her private observatory in Vienna was better equipped than the University Observatory. The name was suggested by H. Haupt.Naming citation (20010705/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where von Matt is today
Seen from above the solar system on 2026-10-14: von Matt is 2.65 au from the Sun and 1.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9816 |
| Provisional designation | 2643 P-L |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.92 km (#12,945 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.418 |
| Absolute magnitude (H) | 13.77 |
| Orbital period | 4.41 years |
| Semi-major axis | 2.69 au |
| Perihelion – aphelion | 2.53 – 2.85 au |
| Eccentricity | 0.0604 |
| Inclination | 22.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.60 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 24 September 1960
- (1743) Schmidt
- (1744) Harriet
- (1776) Kuiper
- (1777) Gehrels
- (1795) Woltjer
- (1808) Bellerophon
- (1809) Prometheus
- (1810) Epimetheus
- (1811) Bruwer
- (1812) Gilgamesh
- (1846) Bengt
- (1868) Thersites