Sark, Samuel M. [from old catalog] · Circleville, Ohio, The author · leaf 65
olarDay Explained.—In Fig. 8, S represents the Sun ; 1 rep-resents the earth with the Sun over the meridian A. Nowthe earth travels along in its orbit from 1 to 2 in a siderealda) and changes its position with respect to the Sun, but onaccount of the enormous distance to a fixed star, no change 60… … Fig. 8. over A in 2, the Sun has not yet arrived over that point, butis directly over the meridian C. Therefore, the Sun will bebehind the star by exactly the time it takes the earth torotate from A to C, LESSON XVIL i. The Earths Revolution.—Before discussing thevariation of the solar day we must…
Astronomy, Juvenile and popular
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-99-212.webp)
