(1638) Ruanda Main-belt Asteroid
Discovered on 3 May 1935 by C. Jackson at Johannesburg.
Named for the state of Ruanda-Urundi.Naming citation (MPC 5182), IAU / Minor Planet Center, via NASA/JPL
Where Ruanda is today
Seen from above the solar system on 2026-10-14: Ruanda is 2.24 au from the Sun and 2.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1638 |
| Provisional designation | A912 HJ |
| Orbit class | Main-belt Asteroid |
| Diameter | 19.1 km (#2,336 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.122 |
| Rotation period | 4.24 hours |
| Spectral type | X |
| Absolute magnitude (H) | 11.63 |
| Orbital period | 4.55 years |
| Semi-major axis | 2.75 au |
| Perihelion – aphelion | 2.22 – 3.27 au |
| Eccentricity | 0.192 |
| Inclination | 0.298° |
| Closest distance between its orbit and Earth's (MOID) | 1.20 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 3 May 1935
More named asteroids discovered by C. Jackson
- (1116) Catriona
- (1186) Turnera
- (1193) Africa
- (1194) Aletta
- (1195) Orangia
- (1196) Sheba
- (1197) Rhodesia
- (1242) Zambesia
- (1243) Pamela
- (1244) Deira
- (1245) Calvinia
- (1246) Chaka
← (1637) Swings · (1639) Bower →