Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 99
lock in the morning, and set directlywest of us at six oclock in the evening. Day andnight will be equal all over the earth. (See Fig. 23.)Hence the name of this time of year, the equinox. Thisis the beginning of spring, so it is the venial equinox.As the sun moves on in its yearly journey around… … Fig. 23.—Day and Night at the Equinoxes. June 21 is to the right of the figure (22), directly beyondD. As the sun is now 23J° above the equator, it shinesaround 23 J° beyond the north pole to A; but belowthe equator it shines only to B, 23J ° short of the southpole. Right of AB is day, left of AB…
Astronomy
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