Stars and telescopes; a hand-book of popular astronomy, founded on the 9th ed. of Lynn's Celestial motions (1899)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911. Celestial motions · Boston, Little, Brown and company · leaf 430
ion of a sec-ond when the star was crossinga wire can then be found bymeasurement, practically freefrom personal equation. The first astronomer who dis-cussed the inherent and unavoid-able deficiencies of instruments and their effects uponobservations was the versatile von Zach, in his… … THE ALMUCANTAR{Devised by Chandler) 37^ Stars and Telescopes as used by DT Chandler, many of the troublesomeerrors of the meridian circle are skilfully eluded. Theflotage principle is adopted for the supports of thetelescope ; and while the small errors of the meridiancircle must be found from…
Astronomy
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