Ball, R[obert] S[tawell], Sir, 1840- [from old catalog] · New York, H. Holt and company · leaf 103
is, ofcourse, known, becausethe stations are known.Also, since a s is parallelto b s, it follows that theangle a m c is equal to theangle mas, and thereforethe angle a m c is known.In the triangle acm wetherefore know one side,A c, and two angles. It follows that the triangle can beconstructed to… … Transit of Venus. 85 The distance of the moon from the earth, as deter-mined by these observations, is about sixty times theearths radius. § 67. Distance of the Sun from the Earth.—Owing to the comparative proximity of the moon tothe earth, the determination of its distance is a muchmore simple…
Astronomy
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