be
about the end more or less swift, than he hath calculated it.

He subjoyneth, that the greatest way, which this Star could make in 24.
hours, hath been 13. d. 25'; and in one houre, about 34'; and thinking it
probable, that about the time, when it made so much way, it should be
nearest to the _Earth_, he concludeth that its motion in 24. hours must be,
in its least distance from the _Earth_, as about 3. to 14, or 1. to 4-2/3,
and that its motion in one hour was to be to the same least distance, as
about 1. to 102-1/7.

But that, which he judgeth most remarkable, is, that he found by his
Calculation, that the said least distance should be on the 29. of
_December_, when the _Comet_ was opposite to the Sun; which he does not
know whether it may not serve to decide the grand Question concerning the
_Motion of the Earth_.

He taketh further notice, that the _Tayl_ of the _Comet_ was to turn
_Westward_, with a point to the _North_, until the 29. of _December_, at
which time it was to be opposite to the _Sun_, and that then the said
_Tayl_ was to look directly _North_; but that, after that time, the _Tayl_
was to turn _Eastward_, and continue to do so, until it disappear; and that
it shall draw a little towards the _North_, until the 8. or 10. of
_February_, at which time the _Tayl_ is to be parallel to the _AEquator_, as
if the _Comet_ be _yet_ seen for some time after, the _Tayl_ shall go a
little lower towards the _South_, but grow smaller.

He finds by his _Hypothesis_, that on the 2. of _December_, which is the
first observation, that he hath heard of, this Star was to be about 7.
times more remote from the _Earth_, than when it was in its _Perigeum_; and
that it will be again in an equall remoteness from the _Earth_, on the 27.
of _January_, so that he is of opinion, that in case this _Comet_ have not
been seen before the 2. of _December_, it will not be seen any more after
the 27. of _January_.

He wishes above all things, that it might be very exactly observed, at what
Angle the way of the _Comet_ cuts the _AEquator_, and, most of all, the
_Ecliptick_, that so it may be seen, whether {7} there hath not been some
_Parallaxe_ in the _Circle_ of his Motion; as also, that some observations
could be had of its greatest descent beneath the _Tropick of Capricorn_ in
the more _Southern_ parts, where he saith it would have been without
_Refractions_; Moreover of the Time, when it hath been in _Quadrat_ with
the _Sun_ ab