(555128) Birstonas Main-belt Asteroid
Discovered on 12 September 2013 by I. Eglitis K. Äernis at Baldone.
Birštonas is a scenic resort and a spa town, population about 4000, in Lithuania. It is located 30 km south of Kaunas, on the right bank of the Nemunas River. Birštonas was granted its city rights in 1529, and was designated as a city in 1966.Naming citation (WGSBN Bull. 2, #5, 14), IAU / Minor Planet Center, via NASA/JPL
Where Birstonas is today
Seen from above the solar system on 2026-10-14: Birstonas is 2.21 au from the Sun and 2.88 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 555128 |
| Provisional designation | 2013 RZ51 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 17.19 |
| Orbital period | 4.64 years |
| Semi-major axis | 2.78 au |
| Perihelion – aphelion | 2.13 – 3.43 au |
| Eccentricity | 0.235 |
| Inclination | 9.17° |
| Closest distance between its orbit and Earth's (MOID) | 1.12 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.