(4484) Sif Main-belt Asteroid
Discovered on 25 February 1987 by P. Jensen at Brorfelde.
👶 Sif as a baby name🐶 Sif as a dog name
Where Sif is today
Seen from above the solar system on 2026-10-14: Sif is 2.89 au from the Sun and 3.61 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4484 |
| Provisional designation | 1987 DD |
| Orbit class | Main-belt Asteroid |
| Diameter | 16.3 km (#2,828 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0780 |
| Absolute magnitude (H) | 12.54 |
| Orbital period | 4.27 years |
| Semi-major axis | 2.63 au |
| Perihelion – aphelion | 2.36 – 2.90 au |
| Eccentricity | 0.102 |
| Inclination | 29.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.38 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.