Mattison, Hiram, 1811-1868 · New York, Huntington and Savage, Mason and Law · leaf 74
toward you, and 90° will bring you opposite the axis of the Earth, and 90° more, or 180° in all, to the bottom of the figure. You are thenhalf way around the zodiac, and 180° more, apparently from the bottom upward,on the other side of the cut, will bring you to 360°, or the point from which… … 68 PRIMARY ASTRONOMY. 30 3. Upon what does the apparent Longitude of a planet depend?Upon its position in the ecliptic and the point fromwhich it is viewed. 304. What is Geocentric* Longitude ? It is the apparent longitude of a planet when viewedfrom the Earth. 305. What is Heliocentric] Longitude…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Cosmographia Francisci Mavrolyci Messanensis Sicvli : in tres dialogos distincta, in quibus de forma, situ numerʹoq[ue] tam coelorum q[uam] elementorum, alijsq[ue] rebus ad astronomica rudimenta spectantibus satis disseritur (1543)](https://img.insideoutlibrary.com/img/200/ia-cosmographiafran00maur-100-0.webp)
