March 1504 lunar eclipse

A total lunar eclipse occurred on 1 March 1504, visible at sunset for the Americas, and later over night over Europe and Africa, and near sunrise over Asia.

March 1504 lunar eclipse
Total eclipse
Drawing from an 1879 edition of L'Astronomie, depicting Christopher Columbus predicting the lunar eclipse to the native Jamaicans.
Date1 March 1504
Gamma0.4057
Magnitude1.0956
Saros cycle105 (53 of 74)
Totality47 minutes, 36 seconds
Partiality205 minutes, 45 seconds
Penumbral339 minutes, 40 seconds

Christopher Columbus, in an effort to induce the natives of Jamaica to continue provisioning him and his hungry men, successfully intimidated the natives by correctly predicting a total lunar eclipse for 1 March 1504 (visible on the evening of 29 February in the Americas), using the Ephemeris of the German astronomer Regiomontanus.[1]

Visibility


The eclipse was visible after sunset on 29 February from most of North America, all of South America, as well as across Europe, Africa, and western Asia on the morning of 1 March.

Observations

On 30 June 1503, Christopher Columbus beached his two last caravels and was stranded in Jamaica. The indigenous people of the island welcomed Columbus and his crew and fed them, but after six months, the natives halted the food supply.[2] Columbus had on board an almanac authored by Abraham Zacuto of astronomical tables covering the years 1475–1506.[3][4][5] Upon consulting the book, he noticed the date and the time of an upcoming lunar eclipse. He was able to use this information to his advantage. He requested a meeting for that day with the Cacique, the leader, and told him that God was angry with the local people's treatment of Columbus and his men. Columbus said God would provide a clear sign of displeasure by making the rising full Moon appear "inflamed with wrath" .

The lunar eclipse and the red Moon appeared on schedule, and the indigenous people were impressed and frightened. The son of Columbus, Ferdinand, wrote that the people:

with great howling and lamentation they came running from every direction to the ships, laden with provisions, praying the Admiral to intercede by all means with God on their behalf; that he might not visit his wrath upon them ...[6]

Columbus went into his cabin to pray and timed the eclipse with his hourglass, and shortly before the totality ended after 48 minutes, he told the frightened indigenous people that they were going to be forgiven.[2] When the Moon started to reappear from the shadow of the Earth, he told them that God had pardoned them.[7]

Longitude

Columbus was maybe the first to put into practice an idea proposed by Hipparchus, to use a lunar eclipse to determine one's geographical longitude. A lunar eclipse is visible across half the globe, and everyone sees it begin and end at the same moment. But the times when measured in the local solar time will differ, because everyone is in a different time zone. The local time is determined by observing the rise, culmination, or setting of the Sun. Now an almanac will predict an eclipse for some place at a certain geographical longitude at a specific local time there. The same event observed elsewhere will occur at a different clocktime. The difference in time is proportional to the difference in geographical longitude, by 15 degrees per hour.

Columbus had no accurate means to determine how far he had travelled West on the globe. He observed the lunar eclipses of 15 September 1494 near Hispaniola (Dominican Republic), and that of 29 February 1504 from Jamaica. In the latter case he reported in his journal that Jamaica was 7 hours and 15 minutes from Cadiz in Spain - well on his way to China. However his site at Jamaica is actually at a longitude 4 hours 44 minutes from Cadiz. How Columbus could make such a large error of 2​1⁄2 hours remains puzzling, but D.W. Olson proposed a reconstruction.[8]

Columbus presumably used the Calendarium from Regiomontanus. This almanac gives the time of mid-eclipse at Nuremberg, but if Columbus erroneously interpreted the listed time as that of the beginning of the partial eclipse, then his 2​1⁄2h error could be explained. One can imagine that such false evidence confirmed Columbus in his belief he had reached China, overlooking the fact that he discovered an entire unknown continent.

Fictional variations

H. Rider Haggard used an altered version of the real story of the rescue of Columbus in his novel King Solomon's Mines (first published 1885), where hero Allan Quatermain and his companions recruit supporters for their cause from the local tribe by predicting a lunar eclipse. (In early editions, this was a solar eclipse; Haggard changed it after realising that his description of a solar eclipse was not realistic)

In Mark Twain's 1889 novel, A Connecticut Yankee in King Arthur's Court, the protagonist, Hank Morgan, a time-travelling 19th-century resident of Hartford, Connecticut, escapes being burned at the stake by predicting a solar eclipse in early medieval England during the time of the legendary King Arthur. Bolesław Prus' historical novel, Pharaoh, written in 1894–95, also uses this trope.[9]

A similar plot also features in The Adventures of Tintin comic, Prisoners of the Sun, first published between 1946 and 1948.

The Guatemalan writer Augusto Monterroso used a similar plot in his short novel El eclipse, published in 1959 in Obras completas (y otros cuentos), but with an opposite ending, sarcastic and anticolonialist.

gollark: I do stupid code moderately well. This is my *thing*, and it's why I did #13.
gollark: I would NOT write code that bad.
gollark: I had that as baidicoot, having worked on a database project with him.
gollark: Oh, so THAT'S why it's so vaguely PHPish.
gollark: I had #7 as Tux. If he was smart, which he probably isn't, this would be a decoy somehow.

See also

Notes
  1. Samuel Eliot Morison, Admiral of the Ocean Sea: A Life of Christopher Columbus, 1942, pp. 653–54. Samuel Eliot Morison, Christopher Columbus, Mariner, 1955, pp. 184-92.
  2. "Christopher Columbus and the Lunar Eclipse". Retrieved 28 April 2010.
  3. Joy Jakim, The First Americans: Prehistory-1600 A History of US Oxford University Press 2005
  4. Clayton J., Drees, The Late Medieval Age of Crisis and Renewal: 1300 - 1500 a Biographical Dictionary, 2001, pp. 511
  5. Djelal , Kadir, Columbus and the Ends of the Earth: Europe's Prophetic Rhetoric As Conquering Ideology.,University of California Press, 1992, pp. 67-68
  6. William Least Heat Moon (2002). Columbus in the Americas. John Wiley and Sons. pp. 175. ISBN 978-0-471-21189-1. Retrieved 28 February 2016.
  7. Joe Rao. "How a Lunar Eclipse Saved Columbus". Retrieved 28 April 2010.
  8. D.W. Olson, "Columbus and an eclipse of the Moon", Sky & Telescope, October 1992, pp. 437..440
  9. Christopher Kasparek, "Prus' Pharaoh and the Solar Eclipse", The Polish Review, 1997, no. 4, pp. 471-78.

References
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