121 
PRIMEIRO FIO 
Estrella do norte 
T = 3 h 52 m O 3 ,25 
Ea = 5 h 47 m 56 s ,55 
S l = 9 h 39 m 56 s ,80 
a = 8 h 12 m 3 S ,22 
t = l h 27"' 53 s ,58 
t =21° 58' 8",70 
Estrella do sul 
T = 4 h 31“ 37 s ,39 
Ea = 5 h 47 m 56 s ,49 
S 2 = IO 11 19 m 33 s ,88 
a = 8“ 40"' 17 s ,32 
i t = l h 39“ 16 8 ,56 
t = 24 c 49' 8",40 
ELEMENTOS DO CALCULO 
Ví (t—t) = 
Ví (Ò—o ) = 
- 1 ° 25' 22", 35 Ví (t. +1„ ) = 23 ° 23' 46",05 
21° 9' 57",93 V. ( o s + o, ) = - 11 ° 43' 34",75 
Numerador da formula Denominador da formula 
cotgVí (o— ò) =0,4120718 tgVí (c 5 + òn) =1,3171628 ( —) 
sen Vi (t—t) = 2,3949993 (— ) cos y, (t— t) = 1,9998662 
n sen N = 2.8070711 (—) 
n cos N = 1.3170290 <—) 
n sen N =2.8070711 ( —) 
n cos N = 1,3170290 (—) 
tg N =1,4900421 
N = 17° 10' 27",30 (3° 0) 
Ví (t s + t»)= 23° 23' 46",05 
[Ví (t. + O— N] = 173° 46' 41",25 
SciELO 
10 11 12 13 14 15 
