(22155) Marchetti Main-belt Asteroid
Discovered on 20 November 2000 by LINEAR at Socorro.
David Marchetti mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. He teaches at the La Colina Junior High School, Santa Barbara, California.Naming citation (20051019/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Marchetti is today
Seen from above the solar system on 2026-10-14: Marchetti is 2.44 au from the Sun and 3.27 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22155 |
| Provisional designation | 2000 WQ88 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.67 |
| Orbital period | 3.48 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 1.99 – 2.61 au |
| Eccentricity | 0.135 |
| Inclination | 6.52° |
| Closest distance between its orbit and Earth's (MOID) | 0.984 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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