The proportion liable to be affected, of that genus or kind on which the event will fall, is to be ascertained by the magnitude of the obscuration caused by the eclipse, and by the positions held by the operative stars in regard to the ecliptical place; as, in vespertine position to a solar eclipse, or in matutine position to a lunar eclipse, the said stars will most usually much diminish the effect; in opposition they render it moderate; but in matutine position to a solar eclipse, or in vespertine to a lunar, they greatly augment and extend it.[94] [93] It is perhaps unnecessary to remark, that, in speaking of ruling places, as liable to be situated in Aquila, Delphinus or Argo, Ptolemy alludes only to the places of the fixed stars in dominion: since the ecliptical place and the planets must be confined to the zodiacal signs.
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