(2984) Chaucer Main-belt Asteroid
Discovered on 30 December 1981 by E. Bowell at Anderson Mesa.
Where Chaucer is today
Seen from above the solar system on 2026-10-14: Chaucer is 2.79 au from the Sun and 2.90 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2984 |
| Provisional designation | 1981 YD |
| Orbit class | Main-belt Asteroid |
| Diameter | 15.4 km (#3,053 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0510 |
| Rotation period | 9.02 hours |
| Absolute magnitude (H) | 13.35 |
| Orbital period | 3.88 years |
| Semi-major axis | 2.47 au |
| Perihelion – aphelion | 2.14 – 2.80 au |
| Eccentricity | 0.134 |
| Inclination | 3.05° |
| Closest distance between its orbit and Earth's (MOID) | 1.15 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.