Across
- 4. R diagram/ a graph that shows the relationship between a star's surface temperature and absolute magnitude.
- 5. Way- The name of our galaxy
- 7. how many planets does the Sun have
- 8. stars/ Second and Longest stage. During this the star's energy is generate in the core as hydrogen atoms fuse into helium atoms.
- 12. or Yellow/ what are the cool colors for a star
- 13. The star that Earth goes around.
- 14. hole- an object so massive and dense that even light can not escape its gravity
- 16. how many times is a Red giant bigger than the sun
Down
- 1. galaxy- The type of galaxy we live in
- 2. dwarf/ a small, hot, dim star that is the leftover center of an old star
- 3. sequence/ the location on the H R diagram where most stars lie
- 6. a rapidly spinning neutron star that emits rapid pulses of radio and optical energy
- 7. star/ a star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutrons
- 9. First Stage; ball of gas and dust
- 10. A gigantic explosion in which a massive star collapses and throws its outer layers into space
- 11. Fusion/ the process that denser, hotter , hydrogen that changes to helium is called
- 14. What color is a warm color for a star
- 15. hundred/ how many times is a Supergiant bigger than the sun