(6386) Keithnoll Mars-crossing Asteroid
Discovered on 10 July 1989 by H. E. Holt at Palomar.
The discoverer of numerous transneptunian binaries, Keith Noll (b. 1958), of the Space Telescope Science Institute, has also detected and exploited useful molecular tracers (such as carbon monoxide and ozone) in brown dwarfs and the giant planets. He is also the creator of the Hubble Heritage project of HST images.Naming citation (20061109/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Keithnoll is today
Seen from above the solar system on 2026-10-14: Keithnoll is 2.60 au from the Sun and 3.27 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6386 |
| Provisional designation | 1989 NK1 |
| Orbit class | Mars-crossing Asteroid |
| Rotation period | 3.15 hours |
| Spectral type | S |
| Absolute magnitude (H) | 12.8 |
| Orbital period | 3.42 years |
| Semi-major axis | 2.27 au |
| Perihelion – aphelion | 1.59 – 2.96 au |
| Eccentricity | 0.301 |
| Inclination | 8.74° |
| Closest distance between its orbit and Earth's (MOID) | 0.621 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.