Nicolai Copernici ... De revolvtionibus orbium coelestium, libri VI. In qvibvs stellarvm et fixarvm et erraticarvm motvs, ex veteribus atq; recentibus obseruationibus, restituit hic autor (1566)
Copernicus, Nicolaus, 1473-1543, Rhäticus, Georg Joachim, 1514-1576. De libris revolutionum Nicolai Copernici narratio prima, Reinhold, Erasmus, 1511-1553. Prutenicae tabvlae coelestivm motvvm, Barjarg, James Erskine, Lord, 1723-1796 (bookplate), Petri, Heinrich, 1508-1579 · Basileae, Ex Officina Henricpetrina · leaf 298
tia perexigua,quxintota eiftantia partium XIl.abeclipticafeaione,fubquibus cxtremusferelimeseft deli quiorumSoliscVLunx,nonexceduntfe inuicem circumferen* tix ipforum orbium in duobus fcrup.qux facerent XV . partes horxEapropter utimur farpe altera^proaltcrajtacjuameifdem.. Ita quoqucuiimur… … angulosipfi a f. Volumusex his fcrutari,quan< tafueritfuperficiesobfcurataa dcg.quotueunciarum fittotius plani,orbisSolis uel Lunx deficientisiii parte, Quoniam igw turexfuperioribns utriufque orbis dirrftiensae,a i datur,di* ftantiaquoquecentrorum jfiuelatitudOjLurjaris ei . Habemus triangulum
Astronomy
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-281-186.webp)
![An illustration from Directorivm generale vranometricvm : in quo trigonometriae logarithmicae fvndamenta, ac regulae demonstrantur, astronomicaeq[ue] supputationes ad solam ferè vulgarem additionem reducuntur : opus vtilissimum astronomis, geometris, arithmeticis, perspectiuis, architectis, praecipuè militaribus, mechanicis, geographis, nec non ipsis philosophis naturalibus (1632)](https://img.insideoutlibrary.com/img/200/ia-directorivmgener00cava-186-0.webp)
![An illustration from Ioan Henrici Alstedii Scientiarum omnium encyclopædiæ : tomus primus [-quartus] ... (1649)](https://img.insideoutlibrary.com/img/200/ia-ioanhenricialste01alst-950-215.webp)
