(3711) Ellensburg Main-belt Asteroid
Discovered on 31 August 1983 by J. Gibson at Palomar.
Where Ellensburg is today
Seen from above the solar system on 2026-10-14: Ellensburg is 2.60 au from the Sun and 1.92 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3711 |
| Provisional designation | 1983 QD |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.76 km (#7,924 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.293 |
| Absolute magnitude (H) | 12.99 |
| Orbital period | 4.34 years |
| Semi-major axis | 2.66 au |
| Perihelion – aphelion | 2.22 – 3.10 au |
| Eccentricity | 0.164 |
| Inclination | 11.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.26 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.