(2491) Tvashtri Inner Main-belt Asteroid
Discovered on 15 February 1977 by W. Sebok at Palomar.
Where Tvashtri is today
Seen from above the solar system on 2026-10-14: Tvashtri is 1.97 au from the Sun and 2.40 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2491 |
| Provisional designation | 1977 CB |
| Orbit class | Inner Main-belt Asteroid |
| Diameter | 3.26 km (#14,577 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.561 |
| Rotation period | 4.09 hours |
| Spectral type | X |
| Absolute magnitude (H) | 13.49 |
| Orbital period | 2.57 years |
| Semi-major axis | 1.88 au |
| Perihelion – aphelion | 1.78 – 1.98 au |
| Eccentricity | 0.0542 |
| Inclination | 22.9° |
| Closest distance between its orbit and Earth's (MOID) | 0.791 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.