Halley’s Comet in 1986

Halley's Comet in 1986

Halley’s Comet in 1986. Image: Wikipedia

Probably the most famous comet, Halley’s Comet or Comet Halley, officially designated 1P/Halley, is a short-period comet visible from Earth every 74–79 years. It is the only known short-period comet that is regularly visible to the naked eye from Earth, and the only naked-eye comet that might appear twice in a human lifetime. Halley last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061. The comet’s periodicity was first determined in 1705 by English astronomer Edmond Halley, after whom it is now named.

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