Halley's Comet, Comet Halley, or sometimes simply Halley, officially designated 1P/Halley, is the only known short-period comet that is consistently visible to the naked eye from Earth, appearing every 75–79 years. It last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061.
Halley's Comet on 8 March 1986
Orionid meteor originating from Halley's Comet streaking the sky below the Milky Way and to the right of Venus
The nucleus of Halley's Comet, imaged by the Giotto probe on 14 March 1986. The dark coloration of the nucleus can be observed, as well as the jets of dust and gas erupting from its surface.
Observation of Halley's Comet, recorded in cuneiform on a clay tablet between 22 and 28 September 164 BC, Babylon, Iraq. British Museum (BM 41462 Archived 19 April 2021 at the Wayback Machine)
Edmond Halley was an English astronomer, mathematician and physicist. He was the second Astronomer Royal in Britain, succeeding John Flamsteed in 1720.
Portrait by Richard Phillips, before 1722
Site of Halley's Observatory on the island of Saint Helena
First page to volume I of Miscellanea curiosa published by the Royal Society (1705), in which Halley wrote "An estimate of the quantity of vapours raised out of the sea, derived from experiment"