y done in _England_. I have no leasure now, by reason of the
Observations of the Fixt Stars, which I now almost constantly am employ'd
about, to do any thing in the advancing of _Telescopes_. I am obliged to
finish the _Catalogue_ of the _Fixt Stars_; having mean while the
contentment to find, that many excellent persons labour about the
Improvement of _Optick Glasses_. If I could get a good one of those of 60.
foot, you mention, at a reasonable rate, you would oblige me in sending me
one; perhaps may I be so happy, as to make likewise some good discovery or
other, by the help thereof. In the mean time, let me know, I pray, the
Dimensions of those Glasses, and how they are to be managed. The ingenious
_Burattini_ has not yet finisht his _Telescope_; as soon {349} as he hath,
I shall acquaint you with it. * Before I conclude, I must give notice to
the Lovers of _Astronomy_, that on the 24. of _September_ (st. n) of this
year, I have observ'd that _New Star_ in _Pectore Cygni_ (which from the
year 1662. untill this time hath been almost altogether hid) not only with
my naked Eye, like a Star of the sixth or seventh Magnitude, but also with
a very great _Sextant_. It is still in the very same place of the Heavens,
where it was formerly from _A._ 1601. to almost 1662. For, its Distance
from _Scheat Pegasi_ hath been by me found 35 deg.. 51'. 20". and from
_Marcab_, 43 deg.. 10'. 50"; which Distances (as I have found in my _Journal_)
are altogether equal to those, which I observ'd _A._ 1658. the 1. of
_November_. For the Distance from _Scheat_ at that time was 35 deg.. 51'. 20".
and from _Marcab_, 43 deg.. 10'. 25": where that former from _Scheat_ exactly
answers to the recent; and that from _Marcab_, 'tis true, differs in a very
few _Seconds_, but that disparity is of no moment, since it only proceeded
from thence, that this _New Star_ is not yet so distinctly to be seen, as
at that time, when it was of the _third Magnitude_. It is therefore
certain, that it is the self same Star, which _Kepler_ did first see _A._
1601. and continued untill _A._ 1662. But whether in time it will grow
bigger and bigger, or be lost again, time will shew. He that will observe
this Star, must take care, lest he mistake those three more _Southern_
ones, of the _Sixth Magnitude_, and now in a manner somewhat brighter
(though not extant on the _Globe_) than the _New Star_ in _Collo Cygni_.
The highest of those three, is distant from _Scheat Pegasi_ 36