Solar eclipse of 1 May 1185

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File:SolarEclipse1185-05-01.gif
Solar eclipse of May 1, 1185

The solar eclipse of 1 May 1185 was a total solar eclipse observed in the territories of Central America, Northern Europe, Eastern Europe, and Kazakhstan. The eclipse is in the Solar Saros 115 series and is number 30. The eclipse shadow on the Earth's surface was at its greatest at 13:18:02 Universal Time. The sun was in Taurus constellation at this time.[1]

Eclipse path

The shadow axis passes between the Earth's center and the north pole, the minimum distance from the center of the Earth to the Moon's shadow cone axis is 3,357 kilometers.[2] The average length of the Moon's shadow is 373,320 kilometers. The distance from the Earth to the Moon on 1 May 1185 is 347,727 kilometers.[2] The apparent diameter of the Moon in 1.0736 times more apparent than the sun.[2] The shadow had a maximum width of 280 kilometers.[3] It began on the west coast of Central America and crossed the Atlantic Ocean in a northeasterly direction. The shadow passed through Nicaragua and the island of Haiti. The maximum duration of the eclipse was in the middle of the North Atlantic at coordinates 46 ° N, 37.2 ° W longitude.[1] The solar eclipse is a long total eclipse that lasted for 5 minutes and 10 seconds.[4] The eclipse magnitude is 1.0736.[1] The eclipse was preceded two weeks earlier by a partial lunar eclipse that happened on April 16.[1]

A partial eclipse came ashore in Scotland, crossed the North Sea and entered Norway. According to astronomer Sheridan Williams there was probably a drop in temperature that happened at the time of the eclipse, which was around 2 pm in Scotland.[5] He says that it was Scotland's fifth longest total eclipse being 4 minutes and 40 seconds there.[5] Williams also notes that it is possible that some adults in Scotland saw two total eclipses in their lifetime, since the previous one was 52 years before.[5]

After passing through Sweden the eclipse touched a part of Finland and covered the northern part of the Baltic Sea at the Gulf of Finland. The eclipse then entered Russia. The eclipse's shadow touched part of St. Petersburg, as well as Novgorod and Rostov. As the eclipse journeyed in a southeasterly direction the shadow passed through Nizhny, Kazan, Ufa and Magnitogorsk. The eclipse shadow started diminishing when it entered in the Central Asia country of Kazakhstan and extinguished totally after about 30 miles before reaching Astana.[6][7][8][9]

In literature

Study of eclipse occurrences can create a precise timetable for historical events that are elusive and could not otherwise be accurately dated.[upper-alpha 1]

The eclipse was mentioned in the Kievan Rus' epic poem Lay of the Host of Igor.[12] It was seen by Prince Igor Svyatoslavich and his army whilst on their campaign against the Polovtsians,[13] and was interpreted as a message from God prophesying trouble.[14] Hence frightening Igor's men who thought it a bad omen.[15][16] According to the Lay, after the eclipse Igor gave a long speech to his retinue to allay their fears before proceeding on his campaign.[17]

The eclipse is mentioned in the 14th-century Laurentian Chronicle with the first detailed description of solar prominences.[10][18][19] They were described as flame-like tongues of live embers:[20][21]

On the first day of the month of May, on the day of the Saint Prophet Jeremiah, on Wednesday, during the evening service, there was a sign in the Sun. It became very dark, even the stars could be seen; it seemed to men as if everything were green, and the Sun became like a crescent of the Moon, from the horns of which a glow similar to that of red-hot charcoals was emanating. It was terrible to see this sign of the Lord.[22][23]

The Melrose Chronicle claims that "stars appeared" at Melrose in Scotland during the eclipse of 1185, but this is doubted by the writer Thomas Cooper who points out that scientific calculations indicate that the eclipse was not total at Melrose.[24]

The Brut y Tywysogion, the Welsh Chronicle of the Princes, says of the solar eclipse of 1 May 1185 Yn y ulwyddyn honno dyw Calan Mei y sumudawd yr heul y lliw; ac y dywat rei uot anei diffyc, which translates as: In that year on the day of the Calends of May the Sun changed its colour; and some said that it was under an eclipse. Bryn Jones believes there was a total solar eclipse across the Scottish Highlands, the Western Isles and Orkney.[25][26]

References

Notes

  1. ↑ "Total eclipses of the Sun are undoubtedly one of the most spectacular of natural events and leave a lasting impression on their viewers. Perhaps then it is not too surprising that these magnificent events are often recorded in the surviving writings of ancient civilizations."[10][11]

Citations

  1. ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ 5.0 5.1 5.2 Williams 1996, p. 5.9.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Williams 1996, p. 5-9.
  8. ↑ Svyatskiy D.O. "Astronomical Phenomena in Russian chronicles with scientific and critical perspective" in Svyatskiy D.O. Астрономия Древней Руси (Astronomy in Ancient Russia). Moscow: Panorama, 2007, pp. 45–49 (in Russian).
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ 10.0 10.1 Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ Herbermann, Pace & Pallen 1909, p. 335.
  12. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  13. ↑ Terras 1985, p. 425.
  14. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  15. ↑ Ushinskiĭ 1978, p. 543.
  16. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  17. ↑ Nabokov 2009, p. 71.
  18. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  19. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  20. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  21. ↑ Sanderson & Harrington 2006, p. 41.
  22. ↑ Lua error in package.lua at line 80: module 'strict' not found. Original text cited at Lua error in package.lua at line 80: module 'strict' not found.
  23. ↑ Stephenson 2008, p. 395.
  24. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  25. ↑ Lua error in package.lua at line 80: module 'strict' not found.. The translation is cited there from Lua error in package.lua at line 80: module 'strict' not found.
  26. ↑ Lua error in package.lua at line 80: module 'strict' not found.

Sources

  • Lua error in package.lua at line 80: module 'strict' not found.
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  • Lua error in package.lua at line 80: module 'strict' not found.
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  • Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.
  • The total solar eclipse of 1 May 1185 (Russian)
  • NASA interactive map of total solar eclipse of 1 May 1185

External links

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