(142020) Xinghaishiyan Main-belt Asteroid
Discovered on 15 August 2002 by NEAT at Palomar.
The Suzhou Industry Park Xinghai Experimental Senior School has the motto “All stars shine brilliantly; All rivers flow to the Sea” and an educational philosophy “to make everyone a star”. Xing means “star”, hai means “sea”, and shiyan means “experimental”. The school has made great efforts to popularize astronomy.Naming citation (20100726/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Xinghaishiyan is today
Seen from above the solar system on 2026-10-14: Xinghaishiyan is 2.98 au from the Sun and 3.87 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 142020 |
| Provisional designation | 2002 PH178 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.24 |
| Orbital period | 5.06 years |
| Semi-major axis | 2.95 au |
| Perihelion – aphelion | 2.73 – 3.16 au |
| Eccentricity | 0.0732 |
| Inclination | 1.45° |
| Closest distance between its orbit and Earth's (MOID) | 1.72 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.