(4843) Megantic Main-belt Asteroid
Discovered on 28 February 1990 by H. Debehogne at La Silla.
Named for Mont Mégantic, the largest observatory in Québec. Founded in 1978, its mission is to promote research in astrophysics, to train students and to promote astronomy in the local culture. The observatory is jointly operated by the Université de Montréal and the Université Laval. Name proposed by the discoverer, following a suggestion by P. Bastien and Y. Dutil.Naming citation (19980808/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Megantic is today
Seen from above the solar system on 2026-10-14: Megantic is 2.76 au from the Sun and 2.00 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4843 |
| Provisional designation | 1990 DR4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 26.7 km (#1,563 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0470 |
| Absolute magnitude (H) | 11.95 |
| Orbital period | 5.43 years |
| Semi-major axis | 3.09 au |
| Perihelion – aphelion | 2.73 – 3.45 au |
| Eccentricity | 0.117 |
| Inclination | 11.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.74 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.