Comet Ikeya–Seki approaches perihelion, passing 450,000 kilometers (279,617 miles) from the sun.

Comet Ikeya–Seki

Great Comet of 1965

Comet Ikeya–Seki, formally designated C/1965 S1, 1965 VIII, and 1965f, was a long-period comet discovered independently by Kaoru Ikeya and Tsutomu Seki. First observed as a faint telescopic object on 18 September 1965, the first calculations of its orbit suggested that on…