About Tsutomu Seki
Tsutomu Seki is a Japanese amateur astronomer and discoverer of minor planets and comets, born in Kōchi, Japan. Seki Tsutomu Seki homepage A list of minor planets discovered by Tsutomu Seki, recognized as of August 2011. Between 1961 and 1970, he had visually discovered six comets, including C/1965 S1 (Ikeya-Seki), the well known great comet of 1965. Asteroid 3426 Seki, discovered by Karl Reinmuth at the Heidelberg Observatory in 1932, was named in his honor. He has also discovered a large number of asteroids such as 13553 Masaakikoyama and 5209 Oloosson, a near-Earth Amor asteroid and a Jupiter trojan, respectively.
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