••>3=il ) sii ( ^•fl« 



Vidimus antem initio, efTe iv — V v v -\- a a — 2 a v cof. -»1, 

 vbi, qnia hi termini, "vtpote littera m alfecli , per fe funt 

 quam minimi, etiam dirtantiam v tanquam conflantem fpe* 

 iH^are licebit, fiquidem ab excentricitate orbitae Terrae 

 mentem abflrahanus, quippe quae non folum eft fatis ' 

 parua, led etiam in praefenti negotio nihil in at^l^ione Ve- 

 neris mutarc elt cenlenda; quam ob cauflam loco v fcri- 

 bamus diftantiam mcdiam Tcrrae a Sole , quam ponimus- 

 — I, ficque crit zv —y i -\- a a ~ 1 a col. >], ideoque 



IV — V 1 -\- a a. y \ — -^^ cof 0, 



■vbi loco ;/\^ fcribamus litteram n, cuius valor, ob di- 



ftantiam mediam Vcneris a Sole a — o, 7234.4.^ eric 



^—o, 94979- Efit autem nunc 



m m i r \— r 



— — , (1 — « cof. ■a) 



[1 -\- a a) 



fiuc, fi breuitatis graiia ponatur 



— j — V--) ent — ~ (X (i— « coUijJ %■ 



(i -\- a a) 

 Tfei notetnr effe jx— 0,0000015 cp, 



fr 6^. Alio autem loco hanc formulam irrationa- 

 Icm pro hoc ipfo cafu iam euolni, atque inueni effe 



(i — « cof y^ "- n A -f B cof >i H- C cof z'A-\-Xy cof 3 >! + Gic. 

 ct pro his lifteris A, B, C, etc- fequentes exadiffimos, 

 jDethodo prorfi s fmgul.iri, adeptus fum valores: 



A— 9,39852; B — 16,63153; C= 13,87191 

 D — II, 17685 ; E — 8, 8o'776; F = 6, 85236 

 0—5,2-6990; H — 4, 04433; I — 3,o87i>9. 



Ho- 



