164 SECULAR VARIATIONS OF THE ELEMENTS OF 



^=+0.0018108+596 / <+660,/-2820^-341/'-25700 i u' r +9320/+17960 i u^ 



JV 6 =+0.0016228+378^+1220 /t '-1540/-315 i u"'-23000/''+7240 i a r 



f-15960"+370^ r "; 

 [ ,"_52ju'"15300u /r +1560 i u "+11040^" 



^=+0.0008794-4^-80^-20^" 3 / u'" 



# 6 "= 0.01 76872+35^+1 100p'+280/+29 / /''+27800/ r 29360^+9680^' 



7850/"; 

 #."'=+0.0019010 4p 600^' 40^" 9/'8800/ r 7360^+18900^' 



2640/ fxr . 



g,= 25".934567 0".000039^ 0".00196/t' 0".00430/ 0".00223/' 18*.2906/ 



-7".35208;u r 0".22692u"' 0".( 

 /? T =306 19 > 21".22".4^242'X+128y65".6 / '"+40V"'+32" l F 1532V 



VI 



VII . 

 9 



VI 



VII 



iv^ ; 



V 



JV 7 '= 0.0002932+40^+5840^'+14100/ 102/' 10300/ 7 8240/^220^ 



40; 



JV T "= 0.0027275 93^12780^' 5500/+1614 i u'"+19000/ r 3520 j r +220 l 



^"'=0.0092499+12631^2700^ 13300^" 295 l "'+8700 / M /I '+5280^ 



+ 1340^ r/ 

 ^^=+0.00630053+0^ 80^' 40^" 10/' 44700 / u /r +44800 i u F +720 / 



N 7 r = 0.0156928+3^+240/+200^"+70/' 43400 /r +44640 ; r 3120^ 



- 

 ^,"=+0.0006890 1^20^20^5^' 3300/ F +3040 i u"+80 / u rr +100 ; m ; 



VI 



%"'; 



VI 



We have thus obtained the system of constants and the coefficients of their 

 variations, corresponding to the ecliptic of 1850, as the plane of reference; and we 

 shall now inquire what modifications are necessary in order to refer the same 

 quantities to the invariable plane of the planetary system. 



