Comet Alcock or Alcock's Comet may refer to any of the five comets discovered by English astronomer, George Alcock, below: C/1959 Q1 (Alcock) C/1959 Q2 (Alcock) C/1963 F1 (Alcock), a non-periodic comet discovered in 1963 and had later disintegrated in the same year. C/1965 S2 (Alcock) C/1983 H1 (IRAS–Araki–Alcock), a long-period comet discovered in 1983 alongside the Infrared Astronomical Satellite and Genichi Araki