Archive image from page 307 of Discovery Discovery discovery0304londuoft Year: 298 DISCOVERY North Pole in June 1295. On August 27, 1367, it made its first appearance in the north of Europe ; in 1439 it was visible all over Europe; in 1601, its eighteenth appearance, it was central and annular in England. It appeared aain in June 1908, and will return in July 1926. At its thirty-ninth appearance, the shadow track will have passed the Equator. The family continues to travel south, and finally it will disappear in 2665. There are twelve families of total eclipse tracks in existence at any one
Archive image from page 307 of Discovery Discovery discovery0304londuoft Year: 298 DISCOVERY North Pole in June 1295. On August 27, 1367, it made its first appearance in the north of Europe ; in 1439 it was visible all over Europe; in 1601, its eighteenth appearance, it was central and annular in England. It appeared aain in June 1908, and will return in July 1926. At its thirty-ninth appearance, the shadow track will have passed the Equator. The family continues to travel south, and finally it will disappear in 2665. There are twelve families of total eclipse tracks in existence at any one time. Six of them are moving north, and six moving south. When one family goes out at one Pole another comes in at the other, and thus their number is kept constant. The next new family will come in at the South Pole on May 29, 1938. The series of particular import- ance to Britishers, however, is that which contains Fic. (.—PATH OF TOTAL ECLIPSE OF 1027. JCXE 29. the eclipse of 1927, for in that year the track \\ill cross the north of England. The eclipse will take place on June 29, and will be total along a band including Conway, Liverpool, Southport, Lancaster, Ripon, and Durham, the central line running from St. David's Head to a point between Whitby and Hartlepool. It will be the first one visible as such in the British Isles since May 22, 1724, an interval of more than two hundred years. The path just described will be traced out in the morning; so will be the beginning of the track, which will pass on to Scandinavia and Northern Asia. At its fourth subsequent return, that of 1981, the beginning will be displaced sufficiently to miss the British Isles, but at the following return, on August 11, 1999, the middle section of the track will just graze the extreme west of Cornwall. Since there are only twelve families of total eclipses, and each recurs but once in eighteen years, it follows that a total eclipse cannot take place annually. The way in which eclipses do act
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