philosophical 
T R a N S A C T I O N s. 
XVII. On the proper Motion of the Sun and Solar Sxjletn ; with 
an Account of fever al Changes that have happened among the 
fixed Stars fincc the Time of Mr. Flamftead. By William 
Herichel, EJq. F. R. S. 
Read March 6, 17 83. 
T HE new lights that modern obfervations have thrown 
upon feveral interefting parts of aftronomy begin to 
lead us now to a fubje£t that cannot but claim the ferious atten- 
tion of every one who wifhes to cultivate this noble fcience. 
That feveral of the fixed ftars have a proper motion is now 
already fo well confirmed, that it will admit of no further 
doubt. From the time this was firft fufpe&ed by Dr. halley 
we have had continued obfervations that Ihew Ar&urus, Sirius, 
Vol. LXXIII. L 1 Aldebaran, 
