(18720) Jerryguo Main-belt Asteroid
Discovered on 21 April 1998 by LINEAR at Socorro.
Jerry Ji Guo (b. 1987) was awarded third place in the 2003 Intel International Science and Engineering Fair for his computer science project. He attends the Riverside High School, Greer, South Carolina, U.S.A.Naming citation (20040830/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Jerryguo is today
Seen from above the solar system on 2026-10-14: Jerryguo is 2.71 au from the Sun and 3.49 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18720 |
| Provisional designation | 1998 HP145 |
| Orbit class | Main-belt Asteroid |
| Diameter | 13.7 km (#3,469 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0200 |
| Absolute magnitude (H) | 13.51 |
| Orbital period | 5.62 years |
| Semi-major axis | 3.16 au |
| Perihelion – aphelion | 2.68 – 3.64 au |
| Eccentricity | 0.152 |
| Inclination | 9.72° |
| Closest distance between its orbit and Earth's (MOID) | 1.67 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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