iCo DE CALCVLO MOTVS 



pusculo dt^ quo fccundum motum medium hic in- 

 troducflum anguhis dr abloluitur , reduximui» , -vn- 

 de pro quou'S tcmpore miniiiu) lUa incrcmcnta fa- 

 cile adlgnari potcrunt. Primo ig tur rclat o intcr 

 angulum ckmentarem (/<P tt dr hac formula ex- 

 primitur : 



vvd<P—adrVmap vnde flt ma^dr^ — pV*(i<P 



fccundo fl ftatuamus vzzri^cJuv et r — -^^^ crit 

 ^\ ^-^:^^«-'-^^^co(:p.fin.«-Ci4-ycor»)n- y) 



( T^ ~ iT ) 



n -d' I ^ Jm. w 

 10' 



n-u^d^eof.M nv^ud^ / i 



4.'. </a — </(p i-x« — -i- -^ (-iijT-ijr) cofM-cofw 



"» , _(_ .^ co;. u / 



exiftente 



coi;|JL— cof.crcof (0— \Jy'-+- fin.crcof.cj nn.(0 — >4>) 



ct fin.y zzfiii.crcof (d -\|/) — cof (Tcof ojfin.' 5- >|') 

 •vbi notctur ^C|) — </y dcfignarc pron ot outm mo- 

 mentancam lincac abfidum in ipla orbiia. 

 Tcrtio pro motu in latitudincm has habcbimus for- 

 mulas : 



1 . </\{y _ ^ (:^' j^) 



, d cj nt>»ud;I l.-o/. Q- /in.(*— jj/; i j_ \ ^'J'. 



* '/j.u) ~ p Uu' u' / — fun. ff 



fcu </(7— </(p-i/\pcof.u). XXIX. 



