Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 46
s re-quired in measures of altitude of aheavenly body, we must have observa-tions both of the thermometer andbarometer to go with the readings ofthe circle. In works on PracticalAstronomy tables are given by which the refraction can be computedfor an object at any altitude and in any state of the… … 51. Second Method of Determining the Latitude. — By the meridian altitude or zenith distance of a body whose declinationis accurately known. In Fig. 13 the circle AQPB is the meridian, Q and P beingrespectively the equator and thepole, and Z the zenith. QZ isobviously the declination of thezenith,…
Astronomy · Constellations
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