(4213) Njord Main-belt Asteroid
Discovered on 25 September 1987 by P. Jensen at Brorfelde.
Where Njord is today
Seen from above the solar system on 2026-10-14: Njord is 2.41 au from the Sun and 3.39 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4213 |
| Provisional designation | 1987 ST4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.91 km (#9,075 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.202 |
| Absolute magnitude (H) | 13.8 |
| Orbital period | 3.69 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 2.20 – 2.57 au |
| Eccentricity | 0.0771 |
| Inclination | 3.41° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.