Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 354
hosewho observed theheavens, and inearly times waslooked on as theeye of a demon.There are manyother stars whichalso change theirbrilliancy. Most ofthem require muchlonger periods thanAlgol, and some-times a new starwhich nobody hasever seen before willsuddenly kindleinto brilliancy. It is now… … Fig. 3. Perseus and Its NeighboringStars including Algol. Double Stars. Whenever you have a chance of looking at theheavens through a telescope, you should ask to beshown what is called a double star. There are manystars in the heavens which present no remarkableappearance to the unaided eye, but…
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