Brocklesby, John, 1811-1889. [from old catalog] · New York, Sheldon and company · leaf 157
eright angle, SEL the apparent semi-diameter of the moon,equal to 15 33//3 and LE the moons distance from the 1. The sum of the angles MEO and EMO subtracted from 18(P givesa remainder of 89° 3; ie. the value of MOE. 2. The mean length of the radius of the earth is 3956.2 miles. 3. The mean… … MOON 8 DIAMETER IN MILES. earth; all known quantities. Selecting then a similar tri-angle; viz., L^E1, and regarding L*El as one mile long,we find that according to the table the length of L^S1 isfour thousand jive hundred and twenty-three millionthsof a mile (004523.) We then make this proportion…
Astronomy
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