(4168) Millan Main-belt Asteroid
Discovered on 6 March 1979 by Felix Aguilar Observatory at El Leoncito.
Named in memory of Julio Rodolfo Millan (1923-1995), first rector of the San Juan National University at the time that the old Yale-Columbia Southern Station was transferred there. Trained as a mining engineer and known for his research on the promotion and development of mining in Argentina, Millan was a professor of metallurgy and later a dean at Cuyo National University, prior to his being appointed organizing delegate of the San Juan National University on its creation in 1973.Naming citation (19981005/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Millan is today
Seen from above the solar system on 2026-10-14: Millan is 2.97 au from the Sun and 2.31 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4168 |
| Provisional designation | 1979 EE |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.88 km (#7,784 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0940 |
| Absolute magnitude (H) | 14.41 |
| Orbital period | 4.12 years |
| Semi-major axis | 2.57 au |
| Perihelion – aphelion | 1.97 – 3.17 au |
| Eccentricity | 0.233 |
| Inclination | 12.3° |
| Closest distance between its orbit and Earth's (MOID) | 0.993 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Julio
All asteroids named after someone called Julio
Also discovered on 6 March 1979
More named asteroids discovered by Felix Aguilar Observatory
- (2075) Martinez
- (2124) Nissen
- (2189) Zaragoza
- (2219) Mannucci
- (2284) San Juan
- (2311) El Leoncito
- (2381) Landi
- (2490) Bussolini
- (2507) Bobone
- (2548) Leloir
- (2550) Houssay
- (2605) Sahade
← (4167) Riemann · (4169) Celsius →