Across
- 1. star A star that has collapsed under gravity and whose protons and electrons have smashed together to form neutrons
- 3. hole An object so massive and dense that light can't even escape its gravity
- 4. A rapidly spinning neutron star that emits pulses of radio and optical energy
- 6. zone Outermost interior layer of the sun; moves heat using hot gases
- 7. zone Layer of sun that transfers heat by radiation
- 11. Outermost layer of the sun
- 13. flare A jet of gas from the chromosphere lasting a few minutes
- 14. Visible layer of the sun; gives off visible light
- 17. A star that explodes and violently blows itself apart
- 18. nebulae Core heated outer gases of a dying star
- 19. dwarf Hot dense core of matter left by a planetary nebulae
Down
- 1. A cloud of gas and dust
- 2. Explosions caused by pressure on a white dwarf that emits matter and energy
- 5. giant Cooler very bright very large red stars
- 6. Sun layer that is reddish during eclipses
- 8. Center of sun where fusion takes place
- 9. Ball of very hot gas that emits light
- 10. Very large very luminous massive star
- 12. mass ejection burst of magnetism and solar wind from the corona
- 15. sequence The diagonal band across a hr diagram
- 16. Colder dark regions of the sun