154 



Our Surroundings 



is a dark body without an atmosphere to support life. It shines 

 by reflecting the light from another body, the sun. 



First the moon is seen as a small crescent in the western sky 

 just after sunset. This occurs a day or two after new moon, 

 at which stage the moon is too near the sun to be visible. The 

 horns, or cusps, are turned to the left, that is, to the east Each 



PHASES OF THE MOON 



The outer circle shows the moon in relation to earth and sun. The inner circle shows 

 it as it appears to us. 



succeeding night for several nights the crescent appears larger 

 and brighter and the times of setting become later, until half of 

 the lighted hemisphere is visible to us. The moon is now in 

 her first quarter. The moon moves along toward the east in her 

 orbit until about the fifteenth day after new moon when she arrives 

 at a point in the heavens exactly opposite to the sun. We now 



