Across
- 4. the color of the coolest stars
- 5. 2nd main gas in our star
- 6. our galaxy
- 8. closest star to Earth
Down
- 1. the size of our star
- 2. determines how hot a star is
- 3. the color of the hottest stars
- 5. main gas in our star
- 7. the color of our star
- 8. gigantic ball of very hot gases