Pagina:Principia newton la.djvu/294

calcaneo Persei (Bayero o) B stellam sequentem in sinistro pede (Bayero ζ) & C, D, E, F, G, H, I, K, L, M, N stellas alias minores in eodem pede. Sintque P, Q, R, S, T loca Cometæ in observationibus supra descriptis: & existente distantiâ AB partium 80$\frac{7}{12}$, erat AC partium 52$\frac{1}{4}$, BC 58$\frac{5}{6}$, AD 57$\frac{5}{12}$, BD 82$\frac{6}{11}$, CD 23$\frac{2}{3}$, AE 29$\frac{4}{7}$, CE 57$\frac{1}{2}$, DE 49$\frac{11}{12}$, AK 38$\frac{2}{3}$, BK 43, CK 31$\frac{5}{9}$, FK 29, FB 23, FC 36$\frac{1}{4}$, AH 18$\frac{6}{7}$, DH 53$\frac{5}{11}$, BN 46$\frac{5}{12}$, CN 31$\frac{1}{3}$, BL 45$\frac{5}{12}$, NL 31$\frac{5}{7}$. LM erat ad LB ut 2 ad 9 & producta transibat per stellam H. His determinabantur positiones fixarum inter se.

Die Veneris Feb. 25. St. vet. Hor. 8$\frac{1}{2}$ P.M. Cometæ in p existentis distantia à stella E erat major quàm $\frac{3}{13}$ AE, minor quàm $\frac{1}{5}$AE, adeoque æqualis $\frac{3}{14}$AE proximè; & angulus ApE nonnihil obtusus erat, sed fere rectus. Nempe si demitteretur ad pE perpendiculum ab A, distantia Cometæ à perpendiculo illo erat $\frac{1}{5}$pE.

Eadem nocte, horâ 9$\frac{1}{2}$, Cometæ in P existentis distantia à stella E erat major quàm $\frac{1}{4\frac{1}{2}}$AE, minor quàm $\frac{1}{5\frac{1}{4}}$AE, adeoque æqualis $\frac{1}{4\frac{7}{8}}$AE, seu $\frac{8}{39}$AE quamproximè. A perpendiculo autem à Stella A ad rectam PE demisso distantia Cometæ erat $\frac{4}{5}$PE.

Die ♂^tis, Mart. 1, hor. 11. P.M. Cometa in R existens, stellis K & C accuratè interjacebat, & rectæ CRK pars CR paulo major erat quàm $\frac{1}{3}$CK, & paulo minor quam $\frac{1}{3}$CK+$\frac{1}{8}$CR, adeoque æqualis $\frac{1}{3}$CK+$\frac{1}{16}$CR seu $\frac{16}{45}$CK.