(2804) Yrjo Main-belt Asteroid
Discovered on 19 April 1941 by L. Oterma at Turku.
Where Yrjo is today
Seen from above the solar system on 2026-10-14: Yrjo is 2.88 au from the Sun and 2.22 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2804 |
| Provisional designation | 1941 HF |
| Orbit class | Main-belt Asteroid |
| Diameter | 17.6 km (#2,562 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.220 |
| Rotation period | 8.12 hours |
| Absolute magnitude (H) | 11.33 |
| Orbital period | 5.23 years |
| Semi-major axis | 3.01 au |
| Perihelion – aphelion | 2.78 – 3.25 au |
| Eccentricity | 0.0790 |
| Inclination | 11.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.76 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
← (2803) Vilho · (2805) Kalle →