(9667) Amastrinc Main-belt Asteroid
Discovered on 29 April 1997 by Spacewatch at Kitt Peak.
Amateur Astronomers, Inc., was founded in 1949 and incorporated in 1956. After 1961 the AAI moved to Union College, Cranford, New Jersey, where it built and instrumented the fine William Miller Sperry Observatory and is involved in research and education. The name was suggested by J. Montani.Naming citation (20060613/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Amastrinc is today
Seen from above the solar system on 2026-10-14: Amastrinc is 2.87 au from the Sun and 3.44 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9667 |
| Provisional designation | 1997 HC16 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.38 km (#7,224 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0490 |
| Rotation period | 4.35 hours |
| Absolute magnitude (H) | 14.35 |
| Orbital period | 3.82 years |
| Semi-major axis | 2.44 au |
| Perihelion – aphelion | 2.01 – 2.87 au |
| Eccentricity | 0.176 |
| Inclination | 2.39° |
| Closest distance between its orbit and Earth's (MOID) | 1.00 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.