8o
Libr. I. Sect. II.
Erat in exemplo nostro, art. i4, log ~~ == 9 ,<)o 355 == log
Cif X (i Cf
aa
log a.
log..
D rr
.0,19290
logtangT?..
.,.g,4o52o
log COS cp .
.9,98652
log sin e.
..g,84q5i n
/ dv \
/ dr \
l °S\dM )
.0,17942
lo s(.d3r)
...9,67495 n
2 — e cos E
= i,8oo85
l°g«.
ee
= 0,06018
log cos cp....
.. q,q8652
1,74067
log cos V....
log.
/ d r \
c. a
log (dW‘
..o ,25858 n
log..
s> rr
.0,19290
log sin E. .
.9,76654 n
.°? 1 999 6 »
Hinc colligitur
dv = + J, 51154 d M — 1,58475 dtpd r — — o,475io d M — 1,81076 d cp + o,8oo85 daquibus yaloribns in formulis praecedentibus substitutis , proditd/ = + 2,41287 d M —3,00527 d cp -f o,i6488da + 1,66075 d/Z—o,r 1102 d/ + o,o4585d££db — — 0,66595 dM-\- 0,6ia48 dcp f 0,02972 da —0,42895 d/Z—0,47555 di+o,58o5od&
Si tempus cui locus computatus respondet n diebus ab epocha distare sup-ponitur, longitudoque media pro epocha per N, motus diurnus per 7 denotaturerit M — N+n 7 — ZZ, adeoque dM= dN + nd 7 —d/Z. In exemplo nostro tem-pus Joco computato respondens est Octobris dies 17,41507 anni i8o4 sub meridianoParisiensi: quodsi itaque pro epocha assumitur initium anni i8o5, est n= —74,584g5;longitudo media pro epocha ista statuta fuerat = 4i°52 , 2i"6i , motusque diurnus= 824"7988. Substituto iam in formulis modo inuentis pro dM yalore suo, muta-tiones differentiales loci geocentrici per solas mutationes elementorum expressae itase habent:
dl = 2,41287 dlV ■■— 179,96 d7 — o,75214 d/Z — 3,00527 dtp + o,i6488da
— 0,11152 d i -f- o,o4585 d ^
= — 0,66093 dlV+ 49,67 d7 + 0,25698 d/Z + o,6i248 dcp + 0,02972 da
— 0,47555 di + o,58o3o d&
tf-