《Tetrabiblos》Number Of The Modes Of ProrogationClaudius Ptolemy（Ashmand 英譯 1822）
The oblique ascensions in the latitude 30° 22′ N. are also shown in the extract referred to in the preceding note: and it thereby appears, that Aries and Taurus ascend in 45° 5′, instead of 46°.
段落 tetra-3-numberofth-49public-domain (Ashmand 1822)
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