gmnmgo£March/iCwcfce it fo long, the faid motion (hall not 
exceed 4. minuts.and fo ftiall be ftill diminifhing^ except the 
Coquet become Retrograde^ which, as very important5 he would 
have well obferved ^as alfo, whether its motion will be about 
the end more or lefs fwiftjthen he hath calculated it. 
He fubjoynethj that the greateft way 5 which this Star 
could make in 24. hours^hath been 13. and in one hour, 
about 34'^ and thinking it probable^ that about the time^ when 
it madeib much way, it (hould be neereft to the E^rM^ he con- 
ciudcth that its motion in 24. hours muft be.in its leaft diftance 
ff om the £^r//j^ as about 3. to 143 or i. to4f,and that its motion 
in one hour was to be to the fame leaft diftance , as about i. 
to I027.>'.ri... . ' 
But thiat;>which he Judgeth moft remarkable; is, that he found 
by his Calculation , that the faid leaft diltance ftiould be on the 
29. o(Dece/^jUr^ when the Comet wz^ oppofite to the Sun*^ which 
he does not know whether it may not ferve to decide the grand 
Queftion concerning the Motion of the Earth. 
He taketh further notice , that the Tayl of t\it Comet was to 
turn Wejlward^ with a point to the ^orth^ until the 29. of Decem- 
ber^ 2t which time it was to be oppofite to the Snrj^ and that then 
the faid Taj/l was to look direftly Nii^r/A 5 but that, after that 
time, the Tayl was to turn Eajiward^ and continue to do fo, until 
it dilappear 3 and that it fliall draw a little towards the North^un" 
til the 8. or 10. of February ^ at which time the tHr/Zistobe pa- 
rallel to the Equator , and if the Comet htyet feen for fome time 
after^the ihall go a little lower towards the South^ but grow 
foaller. 
He finds by his Hypothejts^ that on the 2. of December ^ which is 
the firft obfervation, that he hath heard of, this Star was to be 
^boxit 7. times more remote from the Earthy then when it was in 
its Perjgeum 5 and that it will be again in an equal remotenefs 
from the Earthy on the 5 7. of January 5 fo that he is of opinion, 
that in cafe this Comet have not been leen before the 2.of Decem- 
ber it will not be fccn any more after the 27. January. 
He V: ifties above all things , that it might be very exadly ob- 
ferved, at what Angle the way of the cuts the JEquator^ 
and, moft of all , the Ecliptickj) that fo it may be fccn , whether 
there 
