(1229) Tilia Outer Main-belt Asteroid
Discovered on 9 October 1931 by K. Reinmuth at Heidelberg.
Where Tilia is today
Seen from above the solar system on 2026-10-14: Tilia is 3.62 au from the Sun and 4.29 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1229 |
| Provisional designation | 1931 TP1 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 27.8 km (#1,496 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0690 |
| Rotation period | 7.04 hours |
| Absolute magnitude (H) | 11.38 |
| Orbital period | 5.80 years |
| Semi-major axis | 3.23 au |
| Perihelion – aphelion | 2.68 – 3.78 au |
| Eccentricity | 0.169 |
| Inclination | 1.04° |
| Closest distance between its orbit and Earth's (MOID) | 1.68 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 9 October 1931
- (1230) Riceia
- (1253) Frisia
- (1624) Rabe
- (1814) Bach
- (3310) Patsy
- (4418) Fredfranklin
- (4647) Syuji
- (5072) Hioki
More named asteroids discovered by K. Reinmuth
- (796) Sarita
- (799) Gudula
- (864) Aase
- (909) Ulla
- (910) Anneliese
- (911) Agamemnon
- (913) Otila
- (918) Itha
- (920) Rogeria
- (921) Jovita
- (922) Schlutia
- (923) Herluga
← (1228) Scabiosa · (1230) Riceia →