(17156) Kennethseitz Outer Main-belt Asteroid
Discovered on 19 May 1999 by Spacewatch at Kitt Peak.
After 31 years, Kenneth Seitz (b. 1941) is retiring in 2009 as director of Cantilena, a women's chorale in Arlington, Massachusetts. He has delighted audiences as a conductor and pianist, contributing significantly to the treble-voice repertoire through his compositions, arrangements and research.Naming citation (20090409/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Kennethseitz is today
Seen from above the solar system on 2026-10-14: Kennethseitz is 3.16 au from the Sun and 3.92 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 17156 |
| Provisional designation | 1999 KS3 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 16.1 km (#2,854 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0650 |
| Absolute magnitude (H) | 12.66 |
| Orbital period | 5.74 years |
| Semi-major axis | 3.20 au |
| Perihelion – aphelion | 3.06 – 3.35 au |
| Eccentricity | 0.0439 |
| Inclination | 25.5° |
| Closest distance between its orbit and Earth's (MOID) | 2.09 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Kenneth