THE UNIVERSE IN WHICH WE LIVE 29 



panion. The gods, angered, changed him to a swan that nightly 

 plunges into the sea. 



The line drawn through the two stars of the bowl of the Dipper 

 opposite the polestar pointers not only reaches the head of the 

 Dragon, but if extended a bit farther reaches a first-magnitude 

 star, Vega, in the constellation of the Lyre. The polestar, 

 Deneb, and Vega mark the corners of a right triangle. The posi- 



FIG. 15. Cygnus, the Swan 



tion of alpha in the constellation of the Dragon with reference 

 to this triangle of Polaris, Deneb, and Vega is shown in the dia- 

 gram. If now this line through alpha Draco and Polaris is 

 extended on the other side of the Pole about the same distance 

 from the Pole as is the Dragon's Head, another first-magnitude start, 

 is seen, Capella of the Charioteer (Fig. 16, p. 30). Auriga is the 

 Charioteer, who carried the goat, Capella, and the kids or Haedi 

 in his arms. It was the goat that suckled the infant Jupiter. 

 Having broken off one of his horns in play, Jupiter endowed it 



