(3494) Purple Mountain Main-belt Asteroid
Discovered on 7 December 1980 by Purple Mountain Observatory at Nanking.
Where Purple Mountain is today
Seen from above the solar system on 2026-10-14: Purple Mountain is 2.05 au from the Sun and 1.72 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3494 |
| Provisional designation | 1980 XW |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.51 km (#8,242 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.347 |
| Rotation period | 5.86 hours |
| Absolute magnitude (H) | 12.88 |
| Orbital period | 3.60 years |
| Semi-major axis | 2.35 au |
| Perihelion – aphelion | 2.04 – 2.66 au |
| Eccentricity | 0.132 |
| Inclination | 5.83° |
| Closest distance between its orbit and Earth's (MOID) | 1.03 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.