Dante and the early astronomers . IMew moon close toReiades^ Fig. 7. First Year, normal. New Moon near the Pleiades aftersunset on the 1st of Nisan. The position of the young moon (which always closely follows the sun) showed thatthe sun was not far west of the Pleiades ; and about 1000 this proved that it wasnear the vernal equinox. The suns position is given for about half an hour after sun-set, when the Pleiades would first be visible. this case he would also be west of Dilgan, the RamsHead, so those stars would rise after him in themorning, and be hidden in his light: therefore, botht
Dante and the early astronomers . IMew moon close toReiades^ Fig. 7. First Year, normal. New Moon near the Pleiades aftersunset on the 1st of Nisan. The position of the young moon (which always closely follows the sun) showed thatthe sun was not far west of the Pleiades ; and about 1000 this proved that it wasnear the vernal equinox. The suns position is given for about half an hour after sun-set, when the Pleiades would first be visible. this case he would also be west of Dilgan, the RamsHead, so those stars would rise after him in themorning, and be hidden in his light: therefore, boththe morning and the evening observation combined toshow that his course was not completed, and that theyear must be lengthened by the addition of an extramonth. Several lists of stars and star-groups indicating themonths in this way have been found, the early listscontaining only a few, the later twelve. If our zodiacoriginated with the Babylonians, there is little doubtthe idea took its rise from these monthly stars, but itis not
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Keywords: ., bookcentury1900, booksubjectastronomy, booksubjectdantealighieri
