Across
- 4. this color star is the coolest
- 5. beginning a stars' life and made up of gas and dust
- 8. the end of a large stars life when it cools down over time
- 10. sequence the longest phase of the star's life cycle
- 11. determines a star's life cycle and ultimate fate
- 13. when nuclear fusion starts and a star is born
- 14. this color star is the hottest
- 16. region in space with intense gravity that nothing can escape
Down
- 1. when large stars explode and eject material into space
- 2. when smaller star's fuel is used up and begins to expand
- 3. a graph that illustrates the relationship that exists between the temperature and luminosity of a star.
- 6. a measure of how much energy leaves a star in a certain period of time
- 7. what pulls gas and dust together to form a protostar
- 9. our what is currently in the main sequence phase
- 12. when larger star's fuel is used up and begins to expand
- 15. the last stage of smaller stars that cools down over time