Jones, H. Spencer (Harold Spencer), 1890- · London E. Arnold & co. · leaf 109
me meridian of longitude, at A and B in Fig. 37. C isthe centre of the Earth and M the position of the Moonat the instant of crossing the meridian. The latitudes of Aand B being known, the distance AB and the angles of thetriangle ABC can be calculated. Astronomical observationsgive the angles… … Fig. 37.—Determination of the MoonsDistance. THE MOON 95 and both the latter angles are known. In the triangle MAB,the base AB and the two adjacent angles are now known andtherefore the distances MA, MB can be calculated. Thedistance, MC, from the centre of the Earth can then bederived from either…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
