《Tetrabiblos》Application, Separation, And Other FacultiesClaudius Ptolemy（Ashmand 英譯 1822）
[61] This has been understood to mean, when the planets or luminaries are within each other’s orbs; Saturn’s orb being 10 degrees, Jupiter’s 12, Mars’s 7 degrees 30 minutes, the Sun’s 17 degrees, Venus’s 8, Mercury’s 7 degrees 30 minutes, and the Moon’s 12 degrees 30 minutes.
段落 tetra-1-applicatio-2public-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。