(399979) Lewseaman Main-belt Asteroid
Discovered on 30 January 2006 by CSS at Catalina.
Lewis T. Seaman (b. 1923) was an engineer for many years at GE Aerospace. Great-grandson of a ship's carpenter from the age of sail, programs he managed built spacecraft including the first Landsat remote sensing satellite, ERTS-1, the first Yuri broadcast satellite, BSE-1, and missions of his beloved Nimbus meteorological series.Naming citation (MPC batch dated 2015-09-28), IAU / Minor Planet Center, via NASA/JPL
Where Lewseaman is today
Seen from above the solar system on 2026-10-14: Lewseaman is 2.77 au from the Sun and 2.72 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 399979 |
| Provisional designation | 2006 BS198 |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.12 km (#17,407 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.202 |
| Rotation period | 15.9 hours |
| Absolute magnitude (H) | 17.01 |
| Orbital period | 3.56 years |
| Semi-major axis | 2.33 au |
| Perihelion – aphelion | 1.82 – 2.84 au |
| Eccentricity | 0.219 |
| Inclination | 23.3° |
| Closest distance between its orbit and Earth's (MOID) | 0.926 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Lewis
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- (6916) Lewispearce
- (8889) Mockturtle
- (9387) Tweedledee
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- (17681) Tweedledum
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- (37609) LaVelle
- (81790) Lewislove
- (213629) Binford
- (270553) Loureed
- (508440) Lewishamilton
All asteroids named after someone called Lewis