LIBER II. CATLCUTLuS III.

Anno 1660: Die 25 Februarii.Hora 9. Hora 10.

1000000 5 1000000 535123 Taganihmi 35123 Log arithmi.

emma laterum 1035123 6, Ora 1035123 601499 20i Ad diſſerentiam eonum 964877 5 98440 964⁰9 F584 10Ia Tangens dimidis ſummæ an. gr.„,

[Ic qgulorum ignotorum 61 33 8 f 10, 26618, 476 31 f 0 10,2681 32Ad I angentem dimidiæ d ſſe- 16,5065 67 16, 25028 52f lrentia eorum dem 59 50 10, 23566, 7 J 48 46 4% 10,25529,32Horum angulorum differentia

lelt Proſthap. or bis Solis 1 43

Medius motus Solis ab Sex. gr. ir. ger, gr.„.

ö quinoctio vero 5 35 17 17 17 5 35 19 41 5Tolk. orbis Solis addenda 1 28 1 43 8 T3berge Sol erat in gradu VV 7. 2 49 18 N.IACuod nobis erat inveſtigandum.

Pro Aſcenſione rectæ Solis obtinenda.P RO RLE MA SECuN Du M.

Ins adjecto ſchemate, A B eſt arcus Eelipticæ.: AC arcus

Kquatoris:& BCarcus circuli declinationis, vel ipſamet Solis

a declinatio. Hi tres arcus conſtituunt trjangulum ſphæricum ABCdich. 1 B rectangulum ad C; cujus hypothenuſa AB cognita eſt, diſtantia. ſcilicet Solis ab Aquinoctio verno;& angulus BAC obliquitas

belptiez grad. 23 38. Quarè datur etiam crus AC diſtantia Solis æquator ia ab eodemquinectio yerno. Nam 3

ſcriptus“1 0 2 Sinz 70.„, Tofaritumi.] g. i. Togariihmiur aue dum complementi BAC 23 30 0 9,9623978 23 30 0 0 9,96239,78e 0 14 Tangens. AB 22 50 4118 9,62774,25 22 57 10 4 p, 6268,018% 4 Tangentem A 52 20 9,90 14,03 21 13 30 48 9,589 25,Eltas 5„ 4 710* e

1 5 5duus 10 98 Aſcenſio recba Solis 338 A. 7 40 338 46.29 12.& ab lf(Qaam obtinere en piebamus. f öqui elt 10 8