events

Halley's Comet is sighted by Johann Georg Palitzsch, confirming Edmund Halley's prediction of its passage. This was the first passage of a comet predicted ahead of time.

Historical image related to Halley's Comet is sighted by Johann Georg Palitzsch, confirming Edmund Halley's prediction of its passage.  This was the first passage of a comet predicted ahead of time. from December 25, 1758

Halley's Comet

Short-period comet visible every 75–77 years

Halley's Comet is the only known short-period comet that is consistently visible to the naked eye from Earth, appearing every 72–80 years, though with the majority of recorded apparitions occurring after 75–77 years. It last appeared in the inner parts of the Solar System in…
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Johann Georg Palitzsch

German astronomer

Johann Georg Palitzsch – 21 February 1788 in Prohlis) was a German astronomer who became famous for recovering Comet 1P/Halley on Christmas Day, 1758. The periodic nature of this comet had been deduced by its namesake Edmond Halley in 1705, but Halley had died before seeing if…
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Edmond Halley

English astronomer (1656–1742)

Edmond Halley was an English astronomer, mathematician and physicist. He was the second Astronomer Royal in Britain, succeeding John Flamsteed in 1720.
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December 25

Day of the year

December 25 is the 359th day of the year in the Gregorian calendar; six days remain until the end of the year.
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