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quainted with the Conftellations (which few People are,^ 
and muft look over the Heavens defignedly with great at * 
tention, notwithftanding all which 'tis poffible for fiich 
obfcure Scars to pais by unfeen. 
This Comet was obferved at Lipjick by the diligent and 
accurate Mr. fCirck i in whole Ephemerides for this year 
there is Iikewile a brief account thereof; He faw it only 
twice, viz. on the S^k and 9^/^. of Septemher fi. vet, 1 686, 
and obferved it as follows. 
Sept. 8. 4^ mane about day-break, he found the Comet 
in tlie Conftellation of Lf^», to the right hand of the Lu- 
eida in Lumhis SI ( as is conceived^ for the Latin Copy is 
' defedive in this place ) and refembling that Star in colour 
and magnitude, with a thni and fhort taile extended up- 
right. Over the Comet in the fame vertical 1 was the Star 
9 a of Bayer J or 2 1 Tychom^ diftanr therefrom by the Mi- 
crometer, exa£liy a degree ; and a Line drawn from the ///^ 
cida inlumbis a to the Comet palled much about half a 
degree to the right hand of the fa id e Leonis. The diftance 
of the Comet from Regulus taken by a Radius was about 
17 gr. The next Morning, Sept. 9. the Comet appeared 
again oblcurer and more difficult to obfervc than before, 
by reafbn of the day-light : however, at 3^ 58 m the di- 
jftance. thereof from 9 a was found by the Micrometer 
2°. 23^ ;^.and at 4/^40 w. again 2gr. 23^ w. To veri- 
fie the Times^:ti|ie Altitude of the Lu'cida in Lumbis a was 
Obferved iigr. icmin. at /\h, odm.mane. A right Line 
^drawn by the Comet and the faid 9 Leonis towards /3 Leo- 
nis^ or the the Lucida Colli, left that Star a little to the right 
hand. The following days being Cloudy no more could 
be Obferved. 
This Comet was feen by a Country-man,who firft gave 
notice therof, from the 6 to the 1 2th of September ; the re* 
fult of whofe Obfervations is, that the Comet was direft 
in motion, that it moved about i\ degree per diem^ and 
that it feemed rather to decreaft in Latitude. On the 7//^ 
