(9900) Llull Main-belt Asteroid
Discovered on 13 June 1997 by M. Blasco at Costitx.
Named in memory of Ramon Llull (1232-1316), writer, philosopher, mystic, missionary and man of science, born in Mallorca. Among his more than 265 works and treatises, his Tractatus novus de astronomia, written in Paris around 1297, adheres to the ideas of Ptolomy.Naming citation (19990728/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Llull is today
Seen from above the solar system on 2026-10-14: Llull is 2.51 au from the Sun and 1.70 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9900 |
| Provisional designation | 1997 LL6 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.69 km (#13,493 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.517 |
| Rotation period | 183 hours |
| Absolute magnitude (H) | 13.91 |
| Orbital period | 3.13 years |
| Semi-major axis | 2.14 au |
| Perihelion – aphelion | 1.69 – 2.59 au |
| Eccentricity | 0.212 |
| Inclination | 3.49° |
| Closest distance between its orbit and Earth's (MOID) | 0.674 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ramon
All asteroids named after someone called Ramon