(11739) Baton Rouge Outer Main-belt Asteroid
Discovered on 25 September 1998 by Cooney Jr., W. R., Collier, M. at Baton Rouge.
Baton Rouge, the Louisiana state capital, is located on the banks of the Mississippi river and derives its name, French for “red stick”, from an Indian marker at the site seen by a French expedition in 1699. The city is home to the Highland Road Park Observatory, where this minor planet was discovered.Naming citation (20000124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Baton Rouge is today
Seen from above the solar system on 2026-10-14: Baton Rouge is 4.92 au from the Sun and 5.90 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11739 |
| Provisional designation | 1998 SG27 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 16.7 km (#2,743 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0760 |
| Rotation period | 5.60 hours |
| Absolute magnitude (H) | 12.06 |
| Orbital period | 7.85 years |
| Semi-major axis | 3.95 au |
| Perihelion – aphelion | 2.98 – 4.92 au |
| Eccentricity | 0.246 |
| Inclination | 12.1° |
| Closest distance between its orbit and Earth's (MOID) | 2.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.