Olmsted, Denison, 1791-1859. [from old catalog] · New York, R. B. Collins · leaf 49
a standard of reference in estimating by the eye, the dis-tance between any two points on the celestial vault. 36 THE EARTH, grees and minutes between that point of the meridianand the zenith. The complement of this arc will bethe suns meridian altitude. Ex. What is the suns meridian altitude at… … Thus in figure 7, let A represent the earth, CH the ho-rizon. HZ a quadrant of a great circle of the heavens, 64. What is the suns meridian altitude at noon on the 18thof June, in latitude 35° ? 65. Define parallax. Illustrate by the figure. What anglemeasures the parallax? Why do astronomers…
Astronomy
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