The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 56
behig raised more than the upperhmb. This distortion is shown in Fig. 43, The verticaldiameter of the sun appears to be considerably less thanthe horizontal diameter. 32. Parallax. — Parallax is the displacement of anobject caused by a change in the point of view from whichit is seen. Thus in Fig.… … Fig. 44- angle aSb. This angle is called the parallax of S, as seenfrom B instead of A. The geocentric parallax of a heavenly body is its dis-placement caused by its being seen from the surface of theearth, instead of from the centre of the earth. In Fig. 45,R is the centre of the earth, and O the…
Astronomy
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