Across
- 5. graph shows relationships with star
- 7. star collapse under gravity
- 8. large cloud of gas
- 9. spectrum wavelengths or frequencies
- 11. magnitude how bright star is
Down
- 1. year distance of light
- 2. space matter of energy
- 3. small hot dim star
- 4. magnitude measure of how bright star is
- 6. actual brightness of object
- 10. dust, gas bonds