(1338) Duponta Main-belt Asteroid
Discovered on 4 December 1934 by L. Boyer at Algiers.
Where Duponta is today
Seen from above the solar system on 2026-10-14: Duponta is 2.02 au from the Sun and 1.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1338 |
| Provisional designation | 1934 XA |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.47 km (#7,126 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.251 |
| Rotation period | 3.85 hours |
| Absolute magnitude (H) | 12.79 |
| Orbital period | 3.41 years |
| Semi-major axis | 2.26 au |
| Perihelion – aphelion | 2.01 – 2.52 au |
| Eccentricity | 0.112 |
| Inclination | 4.81° |
| Closest distance between its orbit and Earth's (MOID) | 1.03 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.