The Total Eclipse of the Moon of 1917 December 28 - The Total Eclipse of the Sun of 1918 June 8 as Visible in the United States
Rigge, William F., S.J.
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THE TOTAL ECLIPSE OF THE MOON The eclipse of December 28 next is exceptional in that, (1) it is the seventh and last eclipse of this year,—seven being the greatest possible number that can occur in a year;—(2) it is the third total lunar eclipse, and (3) its magnitude is only one per cent more than total and the duration of totality only seventeen minutes. It will be completely visible all over the United States, although the time of its occurrence may be inconvenient. THE TOTAL ECLIPSE OF THE SUN The maps herewith presented contain in a graphic and condensed form all the data concerning the coming total solar eclipse given by the American Ephemeris, together with some additional information. Those pertaining to the central line were obtained directly from the Ephemeris, all the rest were found from a graphic construction.