B== 749 



verticali occidentem versus declinat. nz <^, latitndine Lu- 

 rae vera ~ b, apparente — b , longitudine vera ~ ^, 

 apparente —C.''» supputavi ope formularum : 



tang ^ = fm Q^rin k -hl Cm' Q. Cm 2 k 'j R' — R ^"4^^' ; 



Parallaxin quoad latitudinem, jui — ^ cof ( ;!^ -4- ^'), b'~6 — /.i, 



X r 



Parallaxin quoad longitudinem, X — — -z^, — j— , (^''z: C - ^- 



Kationem diametrornm telluris supposui — |~ , lonsitu- 

 dinem Pctropolis a Lutetia Parisiorum — i'' $1' 58 ^ lati- 

 tudinem Pctropolis = 59° 56' 23'''', unde sequitur inclina- 

 tio radii ad Aequatoiein, seu latitudo correcta ~ 59° 46' 25^^. 

 Obliq.iitaiem Eclipsis invcni —23'' 28^10', parallaxin So 

 lis- -^ 8/^4-08- Ea cetera calculaiionis elementa : 



Tem- 



