(65692) Trifu Main-belt Asteroid
Discovered on 12 September 1991 by Schmadel, L. D., Borngen, F. at Tautenburg.
Romanian-born Cezar I. Trifu (b. 1954) studies the physics of seismic sources and induced seismicity as senior scientist and adjunct professor at Queen's University, Canada. He is the author of many papers and books. Trifu is also a world-famous short-wave radio operator. Name proposed by the first discoverer.Naming citation (MPC batch dated 2015-06-02), IAU / Minor Planet Center, via NASA/JPL
Where Trifu is today
Seen from above the solar system on 2026-10-14: Trifu is 2.76 au from the Sun and 3.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 65692 |
| Provisional designation | 1991 RH3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.66 km (#11,307 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0510 |
| Absolute magnitude (H) | 15.95 |
| Orbital period | 4.06 years |
| Semi-major axis | 2.54 au |
| Perihelion – aphelion | 2.04 – 3.04 au |
| Eccentricity | 0.197 |
| Inclination | 6.29° |
| Closest distance between its orbit and Earth's (MOID) | 1.03 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 12 September 1991
- (6864) Starkenburg
- (9187) Walterkroll
- (9344) Klopstock
- (10782) Hittmair
- (21074) Rugen
- (21075) Heussinger
- (21076) Kokoschka
- (23490) Monikohl
- (24712) Boltzmann
- (24713) Ekrutt
- (27758) Michelson
- (46563) Oken