(1551) Argelander Main-belt Asteroid
Discovered on 24 February 1938 by Y. Vaisala at Turku.
Where Argelander is today
Seen from above the solar system on 2026-10-14: Argelander is 2.54 au from the Sun and 3.11 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1551 |
| Provisional designation | 1938 DC1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.2 km (#4,964 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.222 |
| Rotation period | 4.06 hours |
| Absolute magnitude (H) | 12.28 |
| Orbital period | 3.71 years |
| Semi-major axis | 2.40 au |
| Perihelion – aphelion | 2.24 – 2.55 au |
| Eccentricity | 0.0655 |
| Inclination | 3.76° |
| Closest distance between its orbit and Earth's (MOID) | 1.23 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 24 February 1938
- (1483) Hakoila
- (1552) Bessel
- (1998) Titius
- (2665) Schrutka
- (2678) Aavasaksa
- (2690) Ristiina
- (3272) Tillandz
- (3281) Maupertuis
- (4181) Kivi
More named asteroids discovered by Y. Vaisala
- (1391) Carelia
- (1398) Donnera
- (1405) Sibelius
- (1406) Komppa
- (1407) Lindelof
- (1421) Esperanto
- (1424) Sundmania
- (1446) Sillanpaa
- (1447) Utra
- (1448) Lindbladia
- (1449) Virtanen
- (1450) Raimonda
← (1550) Tito · (1552) Bessel →