[ ig ] 
Pole of the Equator to be at A , when the Moon’s 
Afcending Node is in the Beginning of Aries ; and 
at By when the Node gets back to Capricorn ; and 
at C, when the fame Node is in Libra : at which 
time the North Pole of the Equator being nearer 
the North Pole of the Ecliptic, by the whole Di- 
ameter of the little Circle AC equal to 18'' 5 the Obli- 
quity of the Ecliptic will then be fo much iefs than 
it was, when the Moon’s Afcending Node was in 
Aries. The Point P is fuppofed to move round 
Ey with an equal retrograde Motion, anfwcrable 
to the mean Preceffion arifing from the joint 
Actions of the Sun and Moon: while the, true Pole 
of the Equator moves round P, in the Circumfe- 
rence A BCD, with a retrograde Motion likewife, 
in a Period of the Moon's Nodes, or of eighteen Years, 
and leven Months. By this means, when the Moon’s 
Afcending Node is in Aries , and the true Pole of 
the Equator at A , is moving from A towards B : it 
will approach the Stars, that come to the Meridian 
with the Sun about the Vernal Equinox; and recede 
from thofe that come with the Sun near the Autumnal 
Equinox, fafler than the mean Pole P does. So 
that, while the Moon's Node goes back from Aries 
to Capricorn , the apparent Preceilion will feem fo 
much greater than the mean\ as to caufe the Stars, 
that lie in the Equinodlial Colure, to have altered 
their Declination 9'’, in about four Years and eight 
Months, more than the mean Precellion would do: 
and in the fame time, the North Pole of the Equa- 
tor will leem to have approached the Stars, that come 
to the Meridian with the Sun at our Winter Sol- 
Bice, about 9"; and to have receded as much from 
thofe, that come with the Sun at the Summcr-Solftice. 
C Thus 
\ 
