(1731) Smuts Main-belt Asteroid
Discovered on 9 August 1948 by E. L. Johnson at Johannesburg.
Where Smuts is today
Seen from above the solar system on 2026-10-14: Smuts is 3.25 au from the Sun and 4.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1731 |
| Provisional designation | 1948 PH |
| Orbit class | Main-belt Asteroid |
| Diameter | 54.8 km (#661 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0580 |
| Rotation period | 12.5 hours |
| Absolute magnitude (H) | 10.51 |
| Orbital period | 5.63 years |
| Semi-major axis | 3.17 au |
| Perihelion – aphelion | 2.76 – 3.57 au |
| Eccentricity | 0.128 |
| Inclination | 5.93° |
| Closest distance between its orbit and Earth's (MOID) | 1.75 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 9 August 1948
More named asteroids discovered by E. L. Johnson
- (1568) Aisleen
- (1580) Betulia
- (1585) Union
- (1607) Mavis
- (1609) Brenda
- (1618) Dawn
- (1623) Vivian
- (1760) Sandra
- (1819) Laputa
- (1885) Herero
- (1922) Zulu
- (2546) Libitina
← (1730) Marceline · (1732) Heike →