(3497) Innanen Main-belt Asteroid
Discovered on 19 April 1941 by L. Oterma at Turku.
Where Innanen is today
Seen from above the solar system on 2026-10-14: Innanen is 3.01 au from the Sun and 2.04 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3497 |
| Provisional designation | 1941 HJ |
| Orbit class | Main-belt Asteroid |
| Diameter | 18.2 km (#2,466 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0860 |
| Rotation period | 7.18 hours |
| Absolute magnitude (H) | 12.17 |
| Orbital period | 4.40 years |
| Semi-major axis | 2.69 au |
| Perihelion – aphelion | 2.27 – 3.10 au |
| Eccentricity | 0.154 |
| Inclination | 11.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.29 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 19 April 1941
More named asteroids discovered by L. Oterma
- (1504) Lappeenranta
- (1507) Vaasa
- (1522) Kokkola
- (1540) Kevola
- (1544) Vinterhansenia
- (1545) Thernoe
- (1558) Jarnefelt
- (1559) Kustaanheimo
- (1679) Nevanlinna
- (1680) Per Brahe
- (1695) Walbeck
- (1705) Tapio
← (3496) Arieso · (3498) Belton →