Halley's Comet or Comet Halley (named efter astronomer Edmond Halley), offeecially designatit 1P/Halley, is a short-period comet veesible frae Yird every 75–76 years. Halley is the anly kent short-period comet that is regularly veesible tae the naked ee frae Yird, an the anly naked-ee comet that micht appear twice in a human lifetime. Halley last appeared in the inner pairts o the Solar Seestem in 1986 an will next appear in mid-2061.