Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 278
awn from the CHAP. XVII.] THE TRANSIT CLOCK AND CHRONOGRAPH. 255 Sim through the earths centre will give us the places a, h,on the earth at which it is midday on the side turnedtowards the sun, and midnight on the side turned fromthe sun. Now when a revolution of the earth withreference to the… … Fir;. 122.—Diagram illustrating the different lengths of solar and sidereal day. a, due to the change of position of the earth, or to theapparent motion of the sun among the stars, by which thesun comes to the meridian rather later than the stars eachday. Now let us suppose that, while one observer…
Astronomy · Telescopes
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