Brocklesby, John, 1811-1889. [from old catalog] · New York, Sheldon and company · leaf 126
cal tables. Bearing in mind these facts wewill proceed to the second part of the explanation. 196. In Fig. 38, S represents the centre of the sun. Ethat of the earth, SL is a line supposed to be drawn fromthe centre of the sun, touching the earth at L, andnecessarily at right angles to the radius… … SUNS DISTANCE MEASURED. earth and sun., SLE, therefore, constitutes a right an-gled triangle, and the angle LSE is the average hori-zontal parallax of the sun, equal to 8.9. 197. Now we know the length of LE, which is half theearths average diameter, to be 3,956.2 miles, and as wehave the value of…
Astronomy
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