《Tetrabiblos》The Degree AscendingClaudius Ptolemy（Ashmand 英譯 1822）
And in order to attain this essential point, it is necessary first to set down the ordinary degree which, by the Doctrine of Ascensions,[114] is found near the ascendant at the presumed hour.
段落 tetra-3-thedegreea-5public-domain (Ashmand 1822)
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