PEGASUS ANDROMEDA PERSEUS. ' 



meda, three of the principal stars of which, marked a, j8, and 7, 

 are shown in the figure. By continuing the line of these stars 



slightly curved, we arrive at another conspicuous star about as 

 far from y as 7 itself is from . This last is the principal star a 

 of the constellation called Perseus. 



23. The seven bright stars, here described, three of which 

 belong to the constellation Pegasus ; three others to Andromeda, 

 and the fourth to Perseus, have a configuration strikingly similar 

 to that of the seven principal stars of Ursa major, as will be 

 easily perceived by fig. 4. 



A second bright star, belonging also to the constellation of 

 Perseus, familiarly known in stellar astronomy by the name of 

 Algol ', is also shown in the figure ; it makes a right angle with 

 the other star a of Perseus, and the star 7 of Andromeda. 



24. If a line be drawn from the star 7 of Pegasus, through the 

 star 7 of Andromeda, and continued to an equal distance beyond 

 the latter, it will arrive at a splendid star of the first magnitude 

 called Capella, being the principal star of the constellation called 

 Auriga. This star, and its relative position to the others, is also 

 shown in the figure. 



25. A general view of the stars included within the region of 

 the firmament which we have now traced is exhibited in fig. 6, 

 so as to enable the student to perceive at a single view all the 

 stars which have been just indicated. Six of the principal stars 

 of Ursa major appear at the upper right hand angle of the figure, 



157 



