Brocklesby, John, 1811-1889. [from old catalog] · New York, Sheldon and company · leaf 359
meter of the earth (LE) ::radius:the distance (SE). Prob. 1. What is the distance of the sun from the earth,its horizontal parallax being 8.9, and the earths semi-diam-eter 3956.2 miles? Ans., 91,684,820 miles. Prob. 2. If the moons horizontal parallax is 57, and theradius of the earth 3956.2… … If in figure 6, S represents the heavenly body, and Ethe earth, and EL and ES two lines drawn from the cen-tre of the earth to the surface and centre of the body, thenas SE is a tangent, we have a right-angled triangle, SLE, inwhich the angle LSE is a right angle, the line LE the distancebetween…
Astronomy
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