628 



TABLE 664.-66 KNOWN ELEMENTS IN THE SUN'S ATMOSPHERE (concluded) 



Neutral atoms 



Disk 



No. lines 



Spot 



No. lines 



Singly ionized atoms 



A 



Disk 



No. lines 



1 - 



—2 



Part 2. — Molecules in the sun — 18 present (either disk or spot spectrum, or both) : 



OH 

 NH 

 O, 



Mg H 

 C. 

 Ti O 



Sc O 

 Al O? 

 Zr O 



CH 

 Cn 



Si H 



Mg O 

 Ca H 

 BH 



Y O 



Mg F 

 Sr F 



307 Babcock, H. D., Astrophys. Journ., vol. 102, p. 154, 1945 (Mount Wilson Contr. No. 708). 



TABLE 665.— ABUNDANCES OF LIGHT ELEMENTS IN EARLY TYPE STARS 



The table gives the number of atoms per 1000 atoms oxygen fcr t Scorpii, spectrum 

 dBo,**\ 10 Lacertae, O; 206 ; y Pegasi, B2.5IV, 208 ; mean for 8 fi-stars, weighted mean by 

 Aller, 200 the last 3 columns from letters to the editor, 1950. : less certain. 



^Unsold, Zeitschr. i. Astrophys., vol. 21, p. 1, 1941. 

 200 Aller, Astrophys. Journ., vol. 104, p. 347, 1946. 



SMITHSONIAN PHYSICAL TABLES 



