例文・使い方で印象づける「algol」の覚え方
スポンサーリンク...It was bysupposing the existence of a dark companion to Algol that its discoverer,Goodricke of York, in 1783, explained variable starsof this type... 
George Forbes 「History of Astronomy」
...Roberts, in South Africa, has done splendid work on the periods of variables ofthe Algol type...
George Forbes 「History of Astronomy」
...The most easterly one is βPersei, known as Algol, the famous variable...
William Tyler Olcott 「A Field Book of the Stars」
...We shall see in a following chapter how it has been provedthat the variability of Algol is due to the occasional interposition ofa dark companion which cuts off a part of the lustre of the star...
Robert Stawell Ball 「The Story of the Heavens」
...Assuming the orbit to be circular,the velocity of Algol was found to be twenty-six miles per second...
Robert Stawell Ball 「The Story of the Heavens」
...It is to the second of these types that Algol is supposedto belong...
Cecil G. Dolmage 「Astronomy of To-day」
...The number of known variables of the Algol type is, so far, small; notmuch indeed over thirty...
Cecil G. Dolmage 「Astronomy of To-day」
...Puppis, an Algol variable of thesouthern hemisphere...
Cecil G. Dolmage 「Astronomy of To-day」
...On October 8th, 1867, at about half-past eleven in the evening, Inoticed that Algol had reached its minimum of brilliancy...
Richard A. Proctor 「Half-hours with the Telescope」
... De Peyster and Allaben: Algol, preface...
Dorothy Stimson 「The gradual acceptance of the Copernican theory of the universe」
...In other words, once in every two daystwenty hours and forty-nine minutes Algol, as seen fromthe earth, undergoes a partial eclipse...
Garrett Serviss 「Pleasures of the telescope」
...The diameter of Algol is believed to be about1,125,000 miles, that of the dark body about 840,000 miles,and the mean distance from center to center 3,230,000miles...
Garrett Serviss 「Pleasures of the telescope」
...We are already acquainted with the variations of Algol, in Perseus, dueto its partial eclipse by a dark globe gravitating in the line of ourvision...
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」
...The variable star Algol orCaput Medusæ, which marks the head of Gorgon, was accounted 'the mostunfortunate, violent, and dangerous star in the heavens...
Richard A. Proctor 「Myths and Marvels of Astronomy」
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