4-2 Mr. Her sen el’s Catalogue 
-fide of the finder. The naked eye then will immediately direct 
ns, by means of the two liars juft mentioned, towards the 
place where, in the finder, the armed eye will perceive the 
double filar in queflion about f degree from the 44th Lyncis. I 
need hardly obferve, that we mud recoiled! the invcrfion of the 
finder, as thofe who are in the habit of ufing telefcopes with 
high powers,, always furnifhed with inverting finders, will of 
courfe look for the fmall far in the upper part of the field, as- 
in fig. 1. 
At the 45th dar, in the fird clafs, the defcription fays, 
64 About 1 \ degree fi preceding towards * Aurigae,” This- 
double dar will accordingly be found by placing p, Aurigae fird 
into the center of the finder ; then, drawing the telefcope 
towards /, which the naked eye points out, the dar we look for 
^vill begin to appear in the circumference as foon as p is about 
degree removed from the center, as in fig. 2. 
It will fometimes happen, that other dars are very near 
thole which are thus pointed out, that might be midaken for 
them. In fuch cafes an additional precaution has been tiled by 
mentioning fome circumdance either -of magnitude orfituation, 
to didinguilh the intended dar from the red. After all, if any 
ohferver fhould be dill at a lofs to find thefe dars without having 
their right afcenfion and declination, he may furnilh himfelf 
with them by means of Flamsteed’s Atlas Cceledis ; for my 
defcription will be diffidently exad for him to make a point in 
die maps to denote the dar’s place; then, by means of the gra- 
duated margin, he will have its JR and declination to the time: 
of the Atlas, which he may reduce to any other period by the 
tifuai computations. 
Before I quit this fubjed I mud remark, that it will be found 
on trial, that this method of pointing out a double dar is not 
only 
