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Returns of Halley’s Comet
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Returns of Halley’s Comet
BC
240..... First confirmed sighting.
164..... Seen by the Babylonians.
87....... Seen by the Babylonians and Chinese.
12....... Watched by Chinese for two months. ‘Hung like a sword over Rome before the death of Agrippa’ according to the historian Dion Cassius.
AD
66 ‘A comet of the kind called Xiphias, because their tails appear to represent the
blade of a sword’ was seen above Jerusalem before its fall, according to the Jewish historian
Flavius Josephus.
141 Described by the Chinese as bluish-white in colour.
218 Described by the Roman historian Dion Cassius as ‘a very fearful star’. Heralded the murder of Emperor Macrinus of Rome by his own troops.
295 Seen in China, but not spectacular.
374 Comet passed 13.5 million kilometres from Earth.
451 Appeared before the defeat of Attila the Hun at the Battle of Chalons.
530 Noted in China and Europe, but not spectacular.
607 Comet passed 13.5 million kilometres from Earth.
684 First known Japanese records of the comet. Seen in Europe and depicted 800
years later in the Nuremberg Chronicle.
760 Seen in China, at the same time as another comet.
837 Closest-ever approach to the Earth (5 million km). Tail stretched halfway across
the sky. Appeared as bright as Venus.
912 Seen briefly in China and Japan.
989 Seen in China, Japan, and (possibly) Korea.
1066 Appeared before the Battle of Hastings. Shown on the Bayeux Tapestry. The comet
passed 16.5 million km from the Earth and was described in Europe as looking
like a dragon, with multiple tails. Seen for over two months in China.
1145 Depicted on the Eadwine Psalter, with the remark that such ‘hairy stars’ appeared rarely, ‘and then as a portent’.
1222 Described by Japanese astronomers as being ‘as large as the half Moon . . . Its colour was white but its rays were red’.
1301 Seen by Giotto di Bondone and included in his painting The Adoration of the Magi. Chinese astronomers compared its brilliance to that of the first-magnitude
star Procyon.
1378 Passed within 10 degrees of the north celestial pole, more northerly than at any
time during the past 2000 years. This is the last appearance of the comet for
which Oriental records are better than Western ones.
1456 Observed in Italy by Paolo Toscanelli, who said its head was ‘as large as the eye of an ox’, with a tail ‘fan-shaped like that of a peacock’. Arabs said the tail resembled a Turkish scimitar. Turkish forces attacked
Belgrade.
1531 Seen by Peter Apian, who noted that its tail always pointed away from the Sun. This sighting was included in Halley’s table.
1607 Seen by Johannes Kepler. This sighting was included in Halley’s table.
1682 Seen by Edmond Halley at Islington.
1759 Return predicted by Halley. First seen by Johann Palitzsch on 1758 December 25.
1835 First seen at the Vatican Observatory in August. Studied by John Herschel at the Cape of Good Hope.
1986 Reached perihelion on February 9, closest to Earth (63 million km) on April 11.
Nucleus photographed by the European space probe Giotto and the Russian probes Vega 1 and 2.
2061 Next return.
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A brief history of Halley’s Comet
Revised extracts from A Comet Called Halley by Ian Ridpath,
published by Cambridge University Press in 1985
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