(20596) Pfalzner Main-belt Asteroid
Discovered on 9 September 1999 by LINEAR at Socorro.
Susanne Pfalzner (b. 1963) is a German astrophysicist at Forschungszentrum Jülich, specializing in numerical studies of stellar dynamics. Her main interests are star, planet, and solar system formation. She has made major contributions on the influence of stellar clusters on the dynamics of asteroids, comets, and interstellar objects.Naming citation (WGSBN Bull. 6, #11, 29), IAU / Minor Planet Center, via NASA/JPL
Where Pfalzner is today
Seen from above the solar system on 2026-10-14: Pfalzner is 2.95 au from the Sun and 2.29 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20596 |
| Provisional designation | 1999 RX188 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.55 km (#13,822 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.222 |
| Rotation period | 18.4 hours |
| Absolute magnitude (H) | 14.61 |
| Orbital period | 4.55 years |
| Semi-major axis | 2.75 au |
| Perihelion – aphelion | 2.29 – 3.20 au |
| Eccentricity | 0.165 |
| Inclination | 13.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.34 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Susanne
All asteroids named after someone called Susanne
Also discovered on 9 September 1999
- (12127) Mamiya
- (12130) Mousa
- (12589) Davidanand
- (12590) Ballantine
- (12591) Bergey
- (12592) Brianchen
- (12593) Shashlov
- (12594) Sidorclare
- (12595) Amandashaw
- (12596) Shukla
- (12597) Williamdaniel
- (12598) Sierra