SUN'S PLACE AMONG THE STARS — ADAMS 

 LUMINOSITIES AND EFFECTIVE TEMPERATURES OF THE STARS 



IP. Ao A. F, f. So 6» "o "■ "P Ji! , 



149 



Figure 5.— Luminosities of 4,179 stars as derived by the spectroscopic metiiod. Giants 

 in tlie upper part of tlie diagram, dwarfs below. At the left the two sequences run 

 together. (Mount Wilson Observatory.) 



