(4018) Bratislava Main-belt Asteroid
Discovered on 30 December 1980 by A. Mrkos at Klet.
Where Bratislava is today
Seen from above the solar system on 2026-10-14: Bratislava is 2.43 au from the Sun and 2.90 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4018 |
| Provisional designation | 1980 YM |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.6 km (#4,276 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0500 |
| Absolute magnitude (H) | 13.79 |
| Orbital period | 4.14 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 2.16 – 3.00 au |
| Eccentricity | 0.163 |
| Inclination | 3.43° |
| Closest distance between its orbit and Earth's (MOID) | 1.17 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.