Career
Starting in 1937, Honda worked for Issei Yamamoto at the Zodiacal Light Observatory in Hiroshima. He discovered twelve comets between 1940 and 1968, including the periodic comet 45P/Honda-Mrkos-Pajdušáková. He was the first to report the very bright V1500 Cygni (Nova Cygni 1975) at magnitude 3.0 on August 29, 1975.
lieutenant peaked at 2.0, and many hundreds of independent discoveries were subsequently made by others