HEAVENLY BODIES 



481 



nebula. The stars look close together, but in reality they are very far 

 apart. It would require several years for light to travel from one 

 star to another and hundreds of years for the light to reach us. 



NORTHERN HEMISPHERE, 



FIG. 366a. -^J) 







Pegasus (Peg'a-siis), the flying horse, contains the Great Square of 

 Pegasus. The stars at each corner of the square are bright but not 

 large. There are no noticeable stars within the square. 



Pegasus was supposed to have sprung from the body of Medusa after her death. 



