Tags: Planet.

21709 Sethmurray is an asteroid. It was discovered on September 7 1999 by MIT’s Lincoln Laboratory Near-Earth Asteroid Research program (LINEAR).It was named after Seth A. Murray as a reward for placing second in the microbiology category at the 2005 Intel International Science and Engineering fair (ISEF) in Phoenix Arizona.

apoapsis (km)
3.68777e+11
average speed (km/s)
71172.0
orbital period (μ)
1.07169e+08
periapsis (km)
3.07193e+11
temperature (K)
185.0
absolute magnitude
14.4
albedo
0.1
discovery date
1999-09-07
discoverer
Lincoln Near-Earth Asteroid Research
epoch
November 26 2005 (JD 2453700.5)
former name
1974 HF2; 1984 GG1; 1994 AA2; 1999 RK92

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