HEAVENLY BODIES 479 



get their names from an ancient story of a beautiful mother called 

 Callisto (ka-lis'-to), Juno's maid, who had a little son named Arcus 

 (ar'-kiis). 



Juno was very angry because of Callisto's beauty, and so she changed her into 

 a bear. When Arcus grew up he became a hunter and was about to kill his mother 



FIG. 365. Position of the Big Dipper at different times of the year. The position 

 also changes during 24 hours. 



when Juno, realizing the danger, put them both in the heavens as stars and caused 

 them to keep moving around and around, instead of rising and setting like other 

 stars. 



Polaris (Po-la'-ris), the North Star, is the most important star in 

 the constellation of Ursa Minor. It is the last star in the handle of the 



