(649792) Sergejbondar Main-belt Asteroid
Discovered on 19 September 2011 by Kryachko, T., Satovski, B. at Zelenchukskaya Stn.
Sergej Bondar (1950–2018) was a Russian design engineer and science manager. He constructed telescopes and developed methods for observing objects in near (artificial satellites) and deep space (γ-ray bursters). Bondar also constructed the first multi-channel telescope in Russia. He received the Korolev and Tsiolkovsky medals.Naming citation (WGSBN Bull. 5, #2, 24), IAU / Minor Planet Center, via NASA/JPL
Where Sergejbondar is today
Seen from above the solar system on 2026-10-14: Sergejbondar is 3.59 au from the Sun and 4.51 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 649792 |
| Provisional designation | 2011 SY194 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.8 |
| Orbital period | 5.66 years |
| Semi-major axis | 3.17 au |
| Perihelion – aphelion | 2.42 – 3.93 au |
| Eccentricity | 0.238 |
| Inclination | 7.69° |
| Closest distance between its orbit and Earth's (MOID) | 1.43 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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