Abstract
AN annular eclipse of the sun, partly visible as a partial eclipse from the British Isles, occurs on April 19 next. The annular phase is visible in Alaska and the Arctic Ocean. At Greenwich, the eclipse begins at 17h 29m, the greatest phase (0.36) being reached at 18h 18m; sunset is at 19h 2m, just before the eclipse ends. The position angle of first contact is 298° from the north point of the sun's image or 258° from the vertex. At Edinburgh the corresponding times are: beginning 17h 17m; greatest phase (0.44) at 18h 12m; ending at 19h 3m. The above times are in Universal Time; add 1 h. to convert to Summer Time.
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Eclipse of the Sun on April 19. Nature 143, 515 (1939). https://doi.org/10.1038/143515b0
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DOI: https://doi.org/10.1038/143515b0