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Half-Hours with the Stars
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Год написания книги: 2019
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MAP XII. NIGHT SKY.—NOVEMBER AND DECEMBER.
Stars of the first magnitude are eight-pointed; second magnitude, six-pointed; third magnitude, five-pointed; fourth magnitude (a few), four-pointed; fifth magnitude (very few), three-pointed. For star names refer to page 4.
1
It may be mentioned in passing, that the dates have not been thrown in so as to fall regularly round the year, but correspond with the variations due to the earth's variable motion round the sun.