(177770) Saulanwu Main-belt Asteroid
Discovered on 8 May 2005 by Mt. Lemmon Survey at Mount Lemmon.
Sau Lan Wu (b. 1940s) is a Chinese-American particle physicist. She is renowned for her integral leadership and participation in the discoveries of the charm quark, the gluon, and the Higgs boson. Wu is the Enrico Fermi Distinguished Professor of Physics at the University of Wisconsin, Madison, and an experimentalist at CERN.Naming citation (WGSBN Bull. 2, #7, 13), IAU / Minor Planet Center, via NASA/JPL
Where Saulanwu is today
Seen from above the solar system on 2026-10-14: Saulanwu is 2.27 au from the Sun and 1.28 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 177770 |
| Provisional designation | 2005 JE163 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.00 km (#17,037 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0700 |
| Absolute magnitude (H) | 17.02 |
| Orbital period | 4.00 years |
| Semi-major axis | 2.52 au |
| Perihelion – aphelion | 2.23 – 2.81 au |
| Eccentricity | 0.115 |
| Inclination | 1.78° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.