(5440) Terao Main-belt Asteroid
Discovered on 16 April 1991 by A. Sugie at Dynic.
Where Terao is today
Seen from above the solar system on 2026-10-14: Terao is 1.87 au from the Sun and 2.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5440 |
| Provisional designation | 1991 HD |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.52 km (#9,676 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.208 |
| Rotation period | 50.3 hours |
| Absolute magnitude (H) | 13.58 |
| Orbital period | 3.20 years |
| Semi-major axis | 2.17 au |
| Perihelion – aphelion | 1.86 – 2.48 au |
| Eccentricity | 0.142 |
| Inclination | 4.56° |
| Closest distance between its orbit and Earth's (MOID) | 0.850 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.