(3746) Heyuan Main-belt Asteroid
Discovered on 8 October 1964 by Purple Mountain Observatory at Nanking.
The city of Heyuan is located in the Chinese northeastern province of Guangdong. Its Evergreen Lake is very famous, and the wealth of fossil dinosaur eggs discovered in Heyuan in 1996 has important scientific value.Naming citation (20000523/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Heyuan is today
Seen from above the solar system on 2026-10-14: Heyuan is 2.40 au from the Sun and 1.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3746 |
| Provisional designation | 1964 TC1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 15.2 km (#3,097 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0700 |
| Rotation period | 16.3 hours |
| Absolute magnitude (H) | 12.84 |
| Orbital period | 5.68 years |
| Semi-major axis | 3.18 au |
| Perihelion – aphelion | 2.39 – 3.97 au |
| Eccentricity | 0.248 |
| Inclination | 1.03° |
| Closest distance between its orbit and Earth's (MOID) | 1.38 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.