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Ikeya-Seki, Comet (C/1965 S1)


Comet Ikeya-Seki
A member of the Kreutz family of sun-grazing comets that was visible in broad daylight during October 1965 and displayed a tail 60° long at maximum; its nucleus split into three parts at perihelion. It was discovered independently in September 1965 by the Japanese amateur astronomers Kaoru Ikeya (1943–) and Tsutomu Seki (1930–).


visual magnitude -10 (max.)
perihelion 0.008 AU (1.2 million km)
eccentricity 0.9999
inclination 141.9°
period 880 years


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