Wentworth, G. A. (George Albert), 1835-1906 · Boston, Ginn & company · leaf 174
f theapparent diurnal motions of these bodies. When the sun ora star in its diurnal motion crosses the meridian, it is said tomake a transit across the meridian; when it passes across thepart NWS of the horizon, it is said to set; and when it passesacross the part NES, it is said to rise (the… … 186 SPHERICAL TRIGONOMETRY the pole, the smaller is the diurnal circle; and if there werestars at the poles P and P, they would have no diurnalmotion. To an observer north of the equator the north pole Pis elevated above the horizon (Fig. 108); to an observer southof the equator the south pole P is…
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