The geography of the heavens, and class book of astronomy: (1849)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Dick, Thomas, 1774-1857. [from old catalog] · New York, Huntington & Savage · leaf 194
3 called Inferior planets? Why are theother planets termed Superior planets t 190 VENDS. Earth. \^Plate /.] As the orbits of Mercury and Veuuslie within the Earths orbit, it is plain, that once in everysynodical revolution, each of these planets will be in con-junction on the same side of the Sun.… … Jcar& The period of Venus synodical revolution is found in the same manner asthat of Mercury; namely, by dividing the whole circumference of her orbitoy her mean relative motion in a day. Thus, Venus absolute mean dailymotion is 1° 3G 7.8. the Earths is 59 8.3. and their difference…
Constellations · Stars
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