[ 42 ] 
increment. 1 at it. € 4' 48" ,• mot us ® in longitudine 
3' 34": ergo tempore initii correct! longit. £ 50° 
12' 1 2" 5 latir . £ bor. 31' 19"; longit. O 5 • 0 3 ' 1 4^ 5 
afeenf. rect. ® = 48 0 36' 47"; dedin. O — 18 0 3' 
14"; ale. rect. £ 47 0 36' 4"} declin. C 18 0 15/46"; 
difF. inter afc. recta m O & C, i° o' 43"; difF. inter 
tempus initii correcti & meridiem, 3 h. 3 d 6"; arcus 
ajquatoris huic tempoti competens =52' 46' 30'' = 
ang. circ. declinationis per centr. O tranfeuntis cum 
meridiano loci. Ab hoc fubducta differentia inter 
afc. rect. ® & £ remanet pro ang. circ, declinatio- 
nis per centr. tranfeuntis cum meridiano — 51 0 
4f' 47". Conveniens altit. S ~ 38' 33": angulus 
circ. decl. cum verticali =41' id's parall. air. = 
47' 50", parall. declin. = 36' o"; parall. afc. rect. 
in circ. parallelo = 3 d 29 ; declin. vifa C = 17 0 43' 
46"; difF. inter declin. vifam <£ 6c declin. 0 = 19' 
28"; DifF. inter afc. rect. O & afc. rect. C, reducta 
ad partes circuli inaximi, pofita paralleli declinatione 
1 7° 44 ; 2= 5 7 ; 34"; parallax, afc. rect. = 3 d 29" : 
ergo diftantia locorum O et C in hoc circulo pa- 
rallelo — 26' 5". Si itaque ex 26' 5", tanquam bah, 
et 19' 28", tanquam catheto, conftruitur triangulum 
rectangulum, hypothenufa hujus trianguli erit diftan- 
tia centrorum 0 et d ; fed 26' s" — 1565"; cujus 
quadratum 2449225, et 19' 28" = 1168"; cujus 
quadratum 1364224: fumma verb quadratorum — 
3813449; cujus radix quadrata = 195 3" duobusfal- 
tem minutis fecundis minor fumma femidiametrorum 
apparentium. 
Pro Fine CorreFtio . 
20. Hujus momentum fupra num. 14. determina- 
tum accidie h. 22, 43' 3i"- Tempus d ct h. 21, 57' 
3 i" 5 
