- 20639 Michellouie
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20639 Michellouie DiscoveryDiscovered by LINEAR Discovery date October 4, 1999 DesignationsAlternate name(s) 1992 AO6; 1999 TD109 Minor planet
categoryMain belt Epoch November 26, 2005 (JD 2453700.5) Aphelion 436.460 Gm (2.918 AU) Perihelion 357.598 Gm (2.390 AU) Semi-major axis 397.029 Gm (2.654 AU) Eccentricity 0.099 Orbital period 1579.223 d (4.32 a) Average orbital speed 18.24 km/s Mean anomaly 49.287° Inclination 9.709° Longitude of ascending node 299.541° Argument of perihelion 168.315° Physical characteristicsDimensions ? km Mass ?×10? kg Mean density ? g/cm³ Equatorial surface gravity ? m/s² Escape velocity ? km/s Rotation period ? d Albedo 0.1? Temperature ~171 K Spectral type ? Absolute magnitude (H) 14.1 (20639) Michellouie is an asteroid discovered on 4 October 1999 by MIT Lincoln Laboratory's Near-Earth Asteroid Research (LINEAR) program.
It was named for Michelle Louie (b. 1986) who was awarded second place in the 2004 Intel International Science and Engineering Fair for her botany project. She attends the Kings Park High School, Kings Park, New York, U.S.A.
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Categories:- Main Belt asteroids
- Asteroids named for people
- Astronomical objects discovered in 1999
- Main Belt asteroid stubs
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