Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 73
o right ascension and declination, and so actually tolook at the position of these bodies with reference tothe celestial sphere. Tycho also had various other instruments of the samekind, differing only in the position of the quadrant D, b, E 50 STARGAZING : PAST AND PRESENT. [book I. and of the… … F[ii. 19..—Tychos Sextant. one form having a telescope and the other being without it. Fio-. 19 is yet another very important instrument in-vented by Tycho Brahe ; it is the prototype of our modernmuch used sextant. It was used by Tycho Brahe for CHAP. IV.] TYCHO BRAHE. 51 determining the distance…
Astronomy · Telescopes
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