The Starry Heavens 



173 



POSITION OF 

 POLARIS 



POSITION OF 

 A DOUBLE STAR.. 

 OR BINARY 



POSITION OF ONE 

 COMPONENT OF AN 

 "OPTICAL' DOUBLE STAR. 



P 



APPARENT POSITION 

 OF A DOUBLE STAR. . A3 

 PROJECTED ON THE 

 CELESTIAL SPHERE / X/ 

 POLE O 

 E 



POSITION OF ONE 

 COMPONENT 

 OF AN 'OPTICAL' ; 

 DOUBLE STAR, 



APPARENT POSITION 

 OFAN'OPTICAL'DOUBLE 

 STAR. AS PROJECTED 

 ON THE CELESTIAL 

 SPHERE 



THE ECLIPTIC 15 THE \- CELE5TIAL 



INTERSECTION OF THE ^"---^ POLE 



PLANE OF EARTH'S ORBIT 



AND THE CELESTIAL SPHERE 



OK THE APPARENT PATH OF THE SUN 



FIG. 113. See if you can understand everything that is on this drawing. 



