《Tetrabiblos》The Quality And Nature Of The EffectClaudius Ptolemy（Ashmand 英譯 1822）
[97] When a comet appears out of the zodiac, a line should be drawn from one zodiacal pole to the other, through the spot where it appears; and that spot is to be considered as being in familiarity with the same countries as those parts of the zodiac which may be on the same line.—_Vide_ Chap.
段落 tetra-2-thequality-55public-domain (Ashmand 1822)
↗ 開啟公有領域原文（Wikisource）此段為公有領域典籍逐字擷取，零 AI 生成；原文亦存繁化前底本，可逐字審計。我們寧可少引、不可錯引——驗不過的引文一律捨棄。