who is halley's comet named after

Halley's Comet is named after the English astronomer Edmond Halley. He was the first to calculate that the appearances of the comet observed in the years 1531, 1607, and 1682 were actually the same comet returning at regular intervals, predicting its return in 1758. This discovery was significant in showing that comets could be periodic rather than one-time celestial events, and the comet was named in his honor even though he did not live to see its predicted return.