Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 383
bodies, those suns re-volving round each other, the discovery of which we owe 360 STARGAZING : PAST AND PRESENT. [book v. to the elder Herscliel. We may thus have two stars asmall (list-inee apart; at another time we may have themcloser still; and at another we may have them gradu-ally separating,… … Fk;. 162. — Double Star Measurement, a a, b b, first position of lixed doublewire when the vernier reads 0°, and the star runs between the wires ; cc, dd,first iiosition of movable wires. aa, b b, new position of fixed doublewire which determines the angle of position ; c c, d d, new positions of…
Astronomy · Telescopes
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