A popular handbook and atlas of astronomy, designed as a complete guide to a knowledge of the heavenly bodies and as an aid to those possessing telescopes (1891)
Peck, William, Sir, 1862-1925 · New York, G. P. Putnam's Sons · leaf 167
. 36 is a representation of the German equatorialmounting applied to a glass reflecting telescope twelveinches in diameter, constructed by the Author. The great advantage of the equatorial mounting forlarge instruments, over any other, is derived from its con-venience for following celestial… … Fig. 35. a modern refracting telescopeequatorially mounted. ASTRONOMICAL INSTRUMENTS. 105 altitude and azimuth stand employed for small telescopes, the instrument would require to be raised, whenfollowing an object in the eastern portion of the sky, and continually lowered, when viewing in the…
Astronomy
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