Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 74
Fig. 68. turned towards the sun is illumined, and the other side is indarkness. As the planet rotates on its axis, successive por-tions of it will be turned towards the sun. As viewed froma point in space between it and the sun. it will presentlight and dark portions, which will assume different… … Fig. 69. is due to the rotation of the earth on its axis, by which aplace on the surface of the earth is carried alternately intothe sunshine and out of it. As the sun moves around the 58 ASTRONOMY. heavens on the ecliptic, it will be on the celestial equatorwhen at the equinoxes, and 2$\° north of…
Astronomy
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