Du Hamel, Jean-Baptiste, 1624-1706, Petit, Pierre, 1594-1677. Observationes aliquoteclipsium solis et lunae · Novimbergæ, : Sumptibus Johannis Ziegeri, Bibliopola, Litteris Christophori Gerhardi. · leaf 158
uales trigonos divifum eft. QtiidIgitur reftat nifi ut tres anguli T,P,0, trigoni TP O, duobus redissequentur;quemadmodumtres angulialterius trianguli TSP,duobuskidein re^is aequalss funt. NaiS omnes utriusque trigoni artgulosquatuor rsftis aequari oftenfum eft. Hinc etiara Sieet colfigere, quod fi… … dua dcmonftratio futura cft, Nam Linca P O cadens in rea.imTDjduos efficit angulos ad punftum O duobus re£lis aequales> Sedmox oftenfum fuit ix^ angidos ejujsdemtrianguii P T O fimu| fumptos T 2 ^^^ 148 JflrmomiaThyfca. duobiis reftis aequari. Tollg igitur coffimunem angulum P O T, duoreftabunt…
Pius XII Memorial Library · Philosophy · Science · Solar eclipses · Lunar eclipses
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![An illustration from Astronomia nova aitiologetos [romanized] sev, Physica coelestis : tradita commentariis de motibvs stellae Martis, ex observationibus G.V. Tychonis Brahe : jussu & sumptibus Rvdolphi II. romanorvm imperatoris &c. : plurium annorum pertinaci studio elaborata Pragae ... (1609)](https://img.insideoutlibrary.com/img/200/ia-astronomianovaai00kepl-80-0.webp)