# Halley's Comet

> English word · Proper noun · IPA /ˌhæliːz ˈkɒmɪt/

## Definitions
1. A great comet which can be seen from Earth every 75–76 years.

## Etymology
Circa 1758. Named after English astronomer Edmond Halley, who first computed its orbit and established its periodicity. Halley predicted the return of the comet (then last seen in 1682) in 1705; when it did return in late 1758, it quickly acquired this name.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/halley-s-comet