| A | B |
|---|
| constellation | a group of stars arranged in a particular pattern |
| rotation | the spinning motion of an object |
| revolution | the movement of one object around another |
| Orion | a winter constellation |
| Leo | a constellation seen in spring |
| Auriga | an autumn constellation |
| Lyra | a summer constellation |
| Polaris | another name for the North Star |
| Casseopeia | looks like a W |
| Big and Little Dippers | two circumpolar constellations |
| Cepheus | looks like a doghouse |
| The stars appear to move from east to west because of | the rotation of the Earth |
| Constellations appear during different seasons because of | the revolution of the Earth |
| To find Polaris | draw a line through the two pointer stars of the Big Dipper |
| The star that never moves | Polaris, or North Star |
| People long ago used the stars | to find directions |
| Betelgeuse | a red giant star in the constellation Orion |
| The rotation of the Earth takes | approximately 24 hours |
| The revolution of the Earth takes | approximately 365 days |
| Astronomical unit | the distance from the Earth to the Sun or 93 million miles |
