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Based on predictions by Edmond Halley in 1705, Johann Georg Palitzsch observed a comet that was later named Halley's Comet .
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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.Source: Wikipedia (CC BY-SA)
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…Source: Wikipedia (CC BY-SA)
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…Source: Wikipedia (CC BY-SA)