Across
- 4. made up of neutrons
- 5. Light moves through space via electromagnetic waves
- 7. How bright or luminous a star appears
- 11. High mass ends as
- 13. Beryllium fuses with helium to form
- 15. Result of the death of the low mass star
Down
- 1. Emits most of their energy as infranted
- 2. stars measured in a light year
- 3. What type of star sun is
- 6. B type stars
- 8. Measurement how bright a star is
- 9. A pattern of bright colored lines of different wavelengths
- 10. shines only because of the stored heat
- 12. stars that are in the main sequence are in their
- 14. The active stars- they are the actively fusing hydrogen