The geography of the heavens, and class book of astronomy: (1853)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, Dick, Thomas, 1774-1857. [from old catalog] · New York, F. J. Huntington [etc.] · leaf 309
the horizon, than when at thealtitude of thirty or forty degrees . When, in reality, do th 1 mbtend the largfM angle 1 Why is it so; How is the apparent increase of magnitude in th*horizontal Moon accounted for. REFRACTION. 303 if the density of the latter medium continually increase, theraysof… … The light emanating from the luminous body of A strikesthe water at B. and is bent out of its course towards the per-pendicular D D. The rays B C are the refracted rays, andthe angle they make at B the angle of refraction. It will be seen further by the diagram that the amountof the angle of…
Constellations · Stars
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