Satellites of the Georgium Sidus , See. 49 
throw more light upon the subject. A remarkable phenome- 
non, of the vanishing of the satellites, will be shewn to take 
place, and its cause animadverted upon. 
I shall now, in the first place, relate the observations on 
which these conclusions must rest for support, and afterwards 
join some short arguments, to shew that my results are fairly 
deduced from them. 
For the sake of perspicuity, I shall arrange the observations 
under three different heads ; and begin with those which relate 
to the discovery of additional satellites. 
A great number of observations on supposed satellites, that 
were afterwards found to be stars, or of which it could not be 
ascertained whether they were stars or satellites, for want of 
clear weather, will only be related. For, to enter into the par- 
ticular manner of recording these supposed satellites, or to give 
the figures which were delineated to point them out, would take 
up too much time, and be of no considerable service to our present 
argument. It ought however to be mentioned, that nearly the 
same precaution was taken with all the related observations as, 
it will be found, was used in those that are given in the words of 
the journals that contain them. The former will be distinguished 
under the head Reports , the latter under that of Observations. 
Investigation of additional Satellites. 
Reports. 
Feb. 6 , 1782. A very faint star was pointed out as probably 
a satellite, but Feb. 7 and 8 was found remaining in its former 
situation. 
March 4, 1783. A satellite was suspected, but March 8 wa« 
found to be a star. 
MDCCXCVIII. 
H 
