《Tetrabiblos》No. IiClaudius Ptolemy（Ashmand 英譯 1822）
And again, on the other hand, by adding 90 to the aggregate times ascribed by right of ascension to the degree on the meridian above the earth, the degree ascending may be obtained, for it will be that degree which corresponds to that total number, as stated in the Table proper to the climate.[291] The Sun always preserves an equal distance in equatorial hours from all parts of the same meridian; but his distance in equatorial hours from different meridians varies according to the degrees of distance between meridian and meridian.
段落 tetra-4-noii-14public-domain (Ashmand 1822)
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