(29988) Davidezilli Main-belt Asteroid
Discovered on 7 December 1999 by LINEAR at Socorro.
Davide Zilli (b. 1993) was awarded second place in the 2013 Intel International Science and Engineering Fair for his energy and transportation team project. He attends the I.S.I. A.Malignani, Udine, Udine, Italy.Naming citation (MPC batch dated 2014-04-15), IAU / Minor Planet Center, via NASA/JPL
Where Davidezilli is today
Seen from above the solar system on 2026-10-14: Davidezilli is 2.31 au from the Sun and 2.52 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 29988 |
| Provisional designation | 1999 XR99 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.70 km (#13,473 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.225 |
| Absolute magnitude (H) | 14.53 |
| Orbital period | 3.30 years |
| Semi-major axis | 2.22 au |
| Perihelion – aphelion | 1.80 – 2.64 au |
| Eccentricity | 0.189 |
| Inclination | 3.55° |
| Closest distance between its orbit and Earth's (MOID) | 0.794 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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