(13499) Steinberg Outer Main-belt Asteroid
Discovered on 1 October 1986 by CERGA at Caussols.
Jean Louis Steinberg (b. 1922) is a co-founder of the Nançay Radio Observatory and Astronomy and Astrophysics. He was among the first in France to launch space-astronomy missions using sounding rockets and satellites to study the physics of ionospheric plasma and the terrestrial magnetosphere.Naming citation (20000523/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Steinberg is today
Seen from above the solar system on 2026-10-14: Steinberg is 2.62 au from the Sun and 1.64 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13499 |
| Provisional designation | 1986 TQ5 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 9.37 km (#5,501 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0800 |
| Absolute magnitude (H) | 13.74 |
| Orbital period | 5.77 years |
| Semi-major axis | 3.22 au |
| Perihelion – aphelion | 2.61 – 3.82 au |
| Eccentricity | 0.188 |
| Inclination | 1.92° |
| Closest distance between its orbit and Earth's (MOID) | 1.61 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Jean
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