(9504) Lionel Main-belt Asteroid
Discovered on 29 September 1973 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Lionel was one of the knights of the Round Table.Naming citation (20001111/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
👶 Lionel as a baby name🐶 Lionel as a dog name🐱 Lionel as a cat name
Where Lionel is today
Seen from above the solar system on 2026-10-14: Lionel is 3.19 au from the Sun and 4.14 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9504 |
| Provisional designation | 2224 T-2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.81 km (#11,006 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.253 |
| Absolute magnitude (H) | 13.85 |
| Orbital period | 5.06 years |
| Semi-major axis | 2.95 au |
| Perihelion – aphelion | 2.71 – 3.19 au |
| Eccentricity | 0.0816 |
| Inclination | 2.39° |
| Closest distance between its orbit and Earth's (MOID) | 1.70 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