(9499) Excalibur Main-belt Asteroid
Discovered on 29 September 1973 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Excalibur was the name of the sword of King Arthur.Naming citation (20001111/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Excalibur is today
Seen from above the solar system on 2026-10-14: Excalibur is 2.95 au from the Sun and 3.94 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9499 |
| Provisional designation | 1269 T-2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.10 km (#10,435 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.225 |
| Absolute magnitude (H) | 13.87 |
| Orbital period | 5.04 years |
| Semi-major axis | 2.94 au |
| Perihelion – aphelion | 2.92 – 2.96 au |
| Eccentricity | 0.00721 |
| Inclination | 0.954° |
| Closest distance between its orbit and Earth's (MOID) | 1.93 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 29 September 1973
- (2049) Grietje
- (4357) Korinthos
- (4549) Burkhardt
- (4721) Atahualpa
- (4752) Myron
- (4876) Strabo
- (4978) Seitz
- (5151) Weerstra
- (5197) Rottmann
- (5243) Clasien
- (5244) Amphilochos
- (5266) Rauch