(2439) Ulugbek Main-belt Asteroid
Discovered on 21 August 1977 by N. S. Chernykh at Nauchnyj.
Where Ulugbek is today
Seen from above the solar system on 2026-10-14: Ulugbek is 3.47 au from the Sun and 3.25 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2439 |
| Provisional designation | 1977 QX2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 21.5 km (#2,025 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0800 |
| Rotation period | 4.26 hours |
| Absolute magnitude (H) | 11.98 |
| Orbital period | 5.57 years |
| Semi-major axis | 3.14 au |
| Perihelion – aphelion | 2.68 – 3.61 au |
| Eccentricity | 0.148 |
| Inclination | 0.292° |
| Closest distance between its orbit and Earth's (MOID) | 1.69 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 21 August 1977
- (2529) Rockwell Kent
- (2671) Abkhazia
- (3471) Amelin
- (4010) Nikol'skij
- (4391) Balodis
- (4882) Divari
- (7216) Ishkov
- (7976) Pinigin
- (11788) Nauchnyj