(1539) Borrelly Main-belt Asteroid
Discovered on 29 October 1940 by A. Patry at Nice.
Where Borrelly is today
Seen from above the solar system on 2026-10-14: Borrelly is 3.63 au from the Sun and 4.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1539 |
| Provisional designation | 1940 UB |
| Orbit class | Main-belt Asteroid |
| Diameter | 26.8 km (#1,556 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.142 |
| Rotation period | 15.9 hours |
| Spectral type | B |
| Absolute magnitude (H) | 11.22 |
| Orbital period | 5.57 years |
| Semi-major axis | 3.14 au |
| Perihelion – aphelion | 2.53 – 3.75 au |
| Eccentricity | 0.194 |
| Inclination | 1.74° |
| Closest distance between its orbit and Earth's (MOID) | 1.54 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by A. Patry
- (1509) Esclangona
- (1510) Charlois
- (1515) Perrotin
- (1516) Henry
- (1756) Giacobini
- (1797) Schaumasse
- (3142) Kilopi
- (4162) SAF
← (1538) Detre · (1540) Kevola →