(11266) Macke Outer Main-belt Asteroid
Discovered on 2 March 1981 by S. J. Bus at Siding Spring.
Robert J. Macke SJ (b. 1974) is a research scientist and meteorite curator at the Vatican Observatory, whose fundamental contributions include studying the relationship between shock state and porosity in carbonaceous chondrites.Naming citation (MPC batch dated 2017-03-12), IAU / Minor Planet Center, via NASA/JPL
Where Macke is today
Seen from above the solar system on 2026-10-14: Macke is 2.68 au from the Sun and 2.17 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11266 |
| Provisional designation | 1981 ES41 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 7.08 km (#7,543 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.112 |
| Absolute magnitude (H) | 13.93 |
| Orbital period | 5.81 years |
| Semi-major axis | 3.23 au |
| Perihelion – aphelion | 2.44 – 4.03 au |
| Eccentricity | 0.246 |
| Inclination | 1.86° |
| Closest distance between its orbit and Earth's (MOID) | 1.45 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Robert
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All asteroids named after someone called Robert
Also discovered on 2 March 1981
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