522 DE PERICVLO , A COMETAE 



ergo 4^ = 7, ioo 

 ct ^ =0,214 



ergo 4^ — 7, oi4ergo *-^=- ] zz 0,285 ] 

 et £# = .0, 241 



et*i2=X> -0,214. 



Nunc iterum valores tertiae columnae J -^T— } et 



?^F^ duplicentur, fiquidem ponatur«?r — i, hinc- 



que habebimus 



ddX — -6, 534. <*** I ddx — -7,666. dr* 

 d d Y = 4- o, 2 1 3. *?r z I </4/ == - °» 66 9* dr* 



hincque nancifcimur 

 X' = 23989, 14+ - 12, 37i.</r- 3> 26*7. </r* 

 Y' = 722, 544 — 412, 831-^T + o, 106". ^r* 

 tf' = 24131,7^0 -581,6-73. </r- 3, 833.^1** 

 y = 830,503— 20, 063- dr — o, 334. </t* 



deinde 



</X' = - i2,37i.dt -6, 534 .</r' 

 */ Y' = +4i2, 831- </r- 0,213. rfr* 

 </*' =-581,673. </* -7,666". </r* 

 ^y — _- 20, 063. dr — o, 669. dr 



vnde iam aggrediamur fequentcm calculum. 



Calculus pro tempore r — \\d poft epocham. 



§. 27. Sumto igitur </r = J et dr*=z s \ fe- 

 qucntia elementa prodibunt : 



X=239^7»546 

 AT= 24058,992 



#-X = 7i>44-6 

 dX — - iy,iSS.dr 

 </* = -552,63i.</r 



Y = 774. 146 

 y — 828, 090 



^-Y = 53,944 



d Y = + 412, 804. </r 



d y zz — 20, 147 ^ r - " 



calct- 



