(1104) Syringa Main-belt Asteroid
Discovered on 9 December 1928 by K. Reinmuth at Heidelberg.
Where Syringa is today
Seen from above the solar system on 2026-10-14: Syringa is 1.74 au from the Sun and 0.816 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1104 |
| Provisional designation | 1928 XA |
| Orbit class | Main-belt Asteroid |
| Diameter | 23.2 km (#1,834 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0330 |
| Rotation period | 5.15 hours |
| Spectral type | Xk |
| Absolute magnitude (H) | 12.33 |
| Orbital period | 4.27 years |
| Semi-major axis | 2.63 au |
| Perihelion – aphelion | 1.73 – 3.53 au |
| Eccentricity | 0.342 |
| Inclination | 6.44° |
| Closest distance between its orbit and Earth's (MOID) | 0.754 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.