Comet Halley (1P or P/Halley). This paper examines Comet Halley. Comets have historically been associated with danger, catastrophe and astrology. However, from the discovery of their periodicity three centuries ago to the Giotto expedition that intercepted the last apparition of the Comet Halley (A1) in 1986 provide valuable astronomical data. 4 pgs. Bibliography lists 6 sources. Pages: 4 Bibliography: 6 source(s) listed Filename: 7021 Examination Comet Halley.doc Price: 35.80