Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 319
295 STARGAZING : PAST AND PIIESENT. [book y. telescope a small motion in rigbt ascension of aboat twohours. Our amateurs then may be forgiven for still … Yiu. lot).—Eulractpi luuuiiUd on All-uziiuuth Tripod lor ordinary Stargazing. adherino; to the alt-azimuth muiintino- for mere star-gazing pmposes. AVe must recollect that, with the alt-azimuth, we are CHAP. XX.] METHODS OF MOUNTING LARGE TELESCOPES. 297 able to measure the position of an object…
Astronomy · Telescopes
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