GERARDI REGNERI FOGKENS 



in nostro casu üt 



_ ( f — t) +h(b' — b) 



"- 2G 



_ — 4^9 4- 26,4 (— 0s231 ) 

 '^ ~ 2 X 34,9 



— 5»,4992 



^ = -w- = - '•'''' 



Sequiliir azimulhutn ex utroque transilu polaris postridie observato definiendum. Fuit 

 aulem in superiore culminalione jjolaris 



adscensio recla OtiSG^Sl^ßO, 

 declinatio 88 21 31,7. 



Praeterea incliaalio erat 



in superiore culminalione 6 =r — 0',I09, 



in inferiore culminalione 6' =z + 0, 071. 

 Ergo aequalio, unde azimuthnm in genere investigatur, 



12 — (r — O + BÄ — B'6' + 2Cc 



«= — fttä 



in noslro casu fit 



— — 24',47 — 26.40 x 0M09 + 25,05 X Os071 -- 2 x 34,92 x 0sl575 

 " "~ 22,85 + 24;32 



— 24s47 — 2»,88 + ls,78 — l^.CO 



46,97 



= - 0';772 



Ilaque elementa correctionum observationibus caeleris addendarum haec sunt 



a = — 0-,772, 6 = — OsllO, c = — 0sl58 

 Ergo habemus : 



Stella. «. /. K — t. Aa. M. Cc. T. 



Sirius. 6'>37'»18s,49 6i>37"55',97 — 37»,48 — 0s72 — 0»,05 — Osl6 — 36s55 



Prosyon. 7 29 59,77 7 30 37,01 —37,24 —0,52 —0,08 —0,16 —36,48 



Alphard. 9 18 51,61 9 19 29,01 —37,40 —0,64 —0,06 —0,16 —36,54 



Regulus. 9 58 54,82 9 59 32,11 —37,29 —0,45 —0,09 —0,16 —36,59 



Media correclio horologü indicantis 8''22" —36,54 



Valores autem factorum A , B , C , in bis stellis sunt : 



Stel- 



