(175238) Nguyenhien Main-belt Asteroid
Discovered on 12 April 2005 by M. W. Buie at Kitt Peak.
Hien Nguyen (b. 1968) is a systems engineer at the Johns Hopkins University Applied Physics Laboratory. He served as the Senior Ground Systems Hardware Engineer for the New Horizons Mission to Pluto.Naming citation (MPC batch dated 2018-05-29), IAU / Minor Planet Center, via NASA/JPL
Where Nguyenhien is today
Seen from above the solar system on 2026-10-14: Nguyenhien is 2.77 au from the Sun and 2.27 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 175238 |
| Provisional designation | 2005 GK187 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.99 |
| Orbital period | 3.80 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 2.00 – 2.87 au |
| Eccentricity | 0.177 |
| Inclination | 1.75° |
| Closest distance between its orbit and Earth's (MOID) | 0.987 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.