(549648) Shirokov Main-belt Asteroid
Discovered on 27 August 2011 by Kryachko, T., Satovski, B. at Zelenchukskaya Stn.
Stanislav Vasilevich Shirokov (1932–2010) was a Soviet astronomer, playwright and lecturer at the Moscow Planetarium and the Argo astronomical school. He created a number of theatrical astronomical programs, which are recognized as masterpieces in the field of popularization of astronomy.Naming citation (WGSBN Bull. 2, #8, 11), IAU / Minor Planet Center, via NASA/JPL
Where Shirokov is today
Seen from above the solar system on 2026-10-14: Shirokov is 3.10 au from the Sun and 4.09 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 549648 |
| Provisional designation | 2011 QA39 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 17.61 |
| Orbital period | 4.29 years |
| Semi-major axis | 2.64 au |
| Perihelion – aphelion | 2.14 – 3.15 au |
| Eccentricity | 0.191 |
| Inclination | 10.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.16 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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