(1552) Bessel Main-belt Asteroid
Discovered on 24 February 1938 by Y. Vaisala at Turku.
Where Bessel is today
Seen from above the solar system on 2026-10-14: Bessel is 3.06 au from the Sun and 3.82 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1552 |
| Provisional designation | 1938 DE1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 18.5 km (#2,415 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.156 |
| Rotation period | 9.00 hours |
| Absolute magnitude (H) | 11.5 |
| Orbital period | 5.23 years |
| Semi-major axis | 3.01 au |
| Perihelion – aphelion | 2.70 – 3.32 au |
| Eccentricity | 0.102 |
| Inclination | 9.83° |
| Closest distance between its orbit and Earth's (MOID) | 1.72 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 24 February 1938
- (1483) Hakoila
- (1551) Argelander
- (1998) Titius
- (2665) Schrutka
- (2678) Aavasaksa
- (2690) Ristiina
- (3272) Tillandz
- (3281) Maupertuis
- (4181) Kivi