C 4043 ) 
^mh 26.h.7^ in the evening, he faw him between the Head 
o'i(^ed.u^A2xA^t iUUd.es \ without a Telcfcope he appeared 
no othcrwifc than a Star of the third magnitude.He appeared big- 
ger by Telefcopes, and furpaffed much the Stars of the iirft mag- 
nittidc;but he was very dark,as if it had been nothing but a fmail 
whitifh cloud,and we could hardly perceive him, wlien we held 
a light to the threds of ourTelefcopes applied to the inftruments, 
inftead of Sights^iot to obferve vi^ith,greater precifcncfs. 
His Htd^ feen with a Telefcope of 1 7 foot, appeared almofl: 
round^but it was well defined,anddiftinguifh'tfrom the miftinefa, 
which formed a kind of chevelure, wherewith it was encompaf- 
fed ; and even the middle was a little .confufcd, ^nd feemed to 
iiave inequalities,as are feen in clouds. 
- The T^//, which is principally that which diftinguifliech Co- 
mets from Stars, was almoft imperceptible;yet by the Telefcope it 
was feen turned oppofite to the Sun, and it appeared of the lengtji 
of two diameters of the Head ©r thereabout.; For it was not eafie, 
to meafure it precifely, becaufe being thinner according as it was 
farther from the Head,lts extremity was infenfibly loft. And fo 
the whole Cornet^ Head, Tail, and Chevelure tjakenaltog^ther, 
took up no more than 3 or 4 minutts of a degree. 
K 7.48*. he was inaftreight line with the Lmida in the Head 
of Medtife^znd with the moft Occidental one of the Fleiades *, and 
^bove the tv;o cleareft Stars of the Southern foot of Ferfeu^ ; fo 
that a ftreight line, drawn through thefe two Stars,did almoft 
touch the Southern extremity of his Chevelure. This p'ace of t he 
Comet, transferred upon the Map of the Fixt Stars, fell preclfely 
enough upon 23 *.2 5,'. of the fign of Taun^yin 14 degrees of Nor- 
thern Latitude, Mean time, we .were fain to content our fel ves 
with determining after this manner the place of the Comet , be- 
caufe of the difficulty we found to fee him by the Inftruments, 
whenthe light was held to them,as was faid above. 
With a Telefcope of 3 foot,we faw near theComet two fmall 
Stars,diftant one diameter of the Sun from one another^ which ftars 
are not in the Catalogues. The Comer was in a manner between 
thofe two ftars, and little by little he approached to the ftreight 
line,drawn from the one to the other. Signer Ca(^m waited the 
rime of its being precifely in this ftreight line ; which hapned at 
h.9.1 5' : and then he found, that he was not exactly in the midft 
df thefe two ftars, and that his center was a little nigher to that, 
which, was weft-wat'd ; But h.9. 33', he was equally diftant from 
Xhcm 
