of the Sun and Solar Syfletn. 253 
I he 7 1 it Herculis, a flar of the 5th magnitude, is loft. 
The 70th and 71ft are fo near each other by flamstead’s 
catalogue, that it cannot be determined without fixed inftru- 
ments, which is the {tar wanting. There is a fmall telefcopic 
flar, within about 30 minutes north following, in a di reft ion 
towards p Lyrae ; if that fhould be the 71ft, it is wonderfully 
changed both in place and fize. The 40th flat* in Mr. mayer’s 
collection of double ftars * feems to be the 70th Herculis of 
flamstead. Now, as that flar is perfectly (ingle in my tele- 
fcope, with every power I have tried upon it, we may furmite 
that one of the ftars which is now vanifhed was {till vifible in 
the year 1778, when Mr. mayer obferved it, though then 
already diminifhed from the 5th to the 8th magnitude* 
The 34th Comae Berenices is loft : flamstead has marked 
it as a flar of the 5th magnitude. 
The 19th of the fame conitellation is alfo loft, or moved 
and changed in magnitude. 
The 40th and 41ft Draconis have undergone fo great an 
alteration of place that we cannot pofTiblv miftake it ; for in 
flamstead’s time they were above three minutes afunder, 
whereas now their diftance is much lefs than half a minute. 
A more particular account of thefe two ftars will be given in 
a fecond collection of more than 400 new double ftars, obferved 
in my third review, which 1 hope foon to have the honour of 
prefenting to the Royal Society. 
There feems to be an alteration in the place of the 65th, 
64th, 54th, and 57th Orionis ; but without fixed inftruments 
I cannot afcertain in which of the ftars it is. Their fituation 
in the heaven does not agree with that which is delineated in 
slamstead’s Atlas Coeleftis, for thefe two pair of ftars are 
o 
* De novis in Cccio fidereo phcenoxcnis. 
much 
