THE STELLAR UNIVERSE. 



363 



Fig. 3 is * Herculis. It consists of a large and small star separated by a 

 space equal to twice the diameter of the larger. The smaller star is blue, and 

 the larger white. This object is situated in the head of the constellation Her- 

 cules, about thirty degrees southwest of the conspicuous star « Lyra, and six 

 degrees northwest of Ras Alhague, a star of nearly equal magnitude. 



Figs. 2—18. 



Fig. 4 is a view of y Andromeda : the small star is of a fine greenish-blue 

 color, separate from the large star about nine seconds, or four diameters of that 

 star ; the larger star is of a reddish- white. It is situated in the left foot of 

 Andromeda, and is distinguished by the name of Almaach. It is a star of the 

 second magnitude, about forty-two degrees of north declination. It is about 

 twelve degrees nearly due west from the variable star Algol. 



Fig 5 is £ Cygni : the smaller star is blue, and they are separated about ten 

 diameters. This star is situated in the eastern wing of the Swan ; right as- 

 cension, 2 lh. 4m, north declination twenty-eight degrees, and is about twenty 

 degrees southeast of Denib, the principal star of this constellation. 



Fig. 6 represents £ Aquarii. The two stars are nearly equal in apparent 

 magnitude, and one diameter and a half separate from each other ; both stars 

 are of a whitish color. It is in the middle of other three stars, which together 

 form a figure resembling the letter Y. Its right ascension is 22h.20m,and its 

 south declination about two degrees. It is a star of about the third magnitude. 



Fig. 7 represents the Pole-star. The accompanying star is a very faint 

 point, and requires an accurate telescope with considerable power to distin- 



