560 The Genesis of Double Stars 
light-curve. In the circumstances, however, I have not thought it 
worth while to reproduce Dr Roberts's provisional figure. 
I now turn to the conclusions drawn a few years previously by 
another observer, where we shall find the component stars not quite 
in contact. This is the star 8 Lyrae which was observed by Goodricke, 
Argelanders Curve 
see Computed Curve 
8 
& 
~- REL PE L=N9R7_ 
Q 
-|---. 650753 
5arG0° 
A=0,399 
Fig. 7. 
The light-curve and system of 6 Lyrae. 
Argelander, Belopolsky, Schur, Markwick and by many others. The 
spectroscopic method has been successfully applied in this case, and 
the component stars are proved to move in an orbit about one another. 
In 1897, Mr G. W. Myers applied the theory of eclipses to the light- 
curve, on the hypothesis that the stars are elongated ellipsoids, and 
he obtained the interesting results exhibited in Fig. 714. 
1 Astrophysical Journ. Vol. vu. (1898), p. 1. 
