(111933) Alphonsetardif Main-belt Asteroid
Discovered on 3 April 2002 by Spacewatch at Kitt Peak.
Alphonse Tardif (1933–2022) was a Canadian abbot, physics teacher and astronomy mentor at the Collège de Lévis, where he inspired students to pursue careers in science. In 1974 he designed and constructed the college's observatory, which now bears his name, to initiate students to astronomy and imaging, assisted by his own clever electronic designs.Naming citation (WGSBN Bull. 2, #14, 12), IAU / Minor Planet Center, via NASA/JPL
Where Alphonsetardif is today
Seen from above the solar system on 2026-10-14: Alphonsetardif is 2.43 au from the Sun and 1.62 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 111933 |
| Provisional designation | 2002 GK37 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.04 km (#10,535 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0840 |
| Absolute magnitude (H) | 15.11 |
| Orbital period | 5.34 years |
| Semi-major axis | 3.06 au |
| Perihelion – aphelion | 2.39 – 3.72 au |
| Eccentricity | 0.218 |
| Inclination | 13.7° |
| Closest distance between its orbit and Earth's (MOID) | 1.41 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Alphonse
All asteroids named after someone called Alphonse