The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 255
evolutionaround the sun, is about two hundred and twenty-five days ;her orbital motion being at the rate of nearly twenty-twomiles a second. Her synodical period, or the time it takesher to pass around from her greatest eastern elongationto the same elongation again, is about five hundred… … Fig. 259. 231. Venus as a Morning and an Evening S/ar. — Fora period of about nine months, while Venus is passing fromsuperior conjunction to her greatest eastern elongation, shewill be east of the sun, and will therefore set after thesun. During this period she is the evening star, the Hespe-7iis…
Astronomy
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