Stars Review

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Across
  1. 3. color of stars with the highest surface temperatures
  2. 6. color of Altair
  3. 7. massive main sequence star turn into these stars when they begin fusion of helium
  4. 9. after creating this element, the core of a massive star collapses creating a supernova
  5. 10. this supergiant is 9000K and 200 times larger than the sun
  6. 12. a _________ nebula consists of the outer layers of a star that are ejected after fusion stops in the core
  7. 13. this orange star is 10 times the size of our sun
  8. 15. an average size star like our sun will end its life as this type of object
  9. 19. nuclear process occurring in stars that creates energy as larger elements are formed
  10. 20. this element is created from the fusion of oxygen in massive stars
  11. 22. this supergiant is 11000K and 100,000 times the luminosity of the sun
  12. 23. the universe is 13.8 ___________ years old
  13. 25. color of stars at 4000K
  14. 26. these red stars are 10-100 times larger than our sun and 100-1000 times more luminous
  15. 28. this is a cloud of gas and dust from which stars form
  16. 29. this happens to light from objects moving quickly away from us such as light from distant galaxies
Down
  1. 1. the most massive stars will end their lives as these objects
  2. 2. massive stars may become this type of star at the end of its life
  3. 4. a group of billions of stars in the same general location of space
  4. 5. the Milky Way galaxy, which contains our sun, is this type of galaxy
  5. 8. color of G type spectral class stars
  6. 11. every element produces a unique one of these
  7. 14. this wave property is larger for red light than for blue light
  8. 16. this element is the fuel for nuclear fusion in our sun
  9. 17. this violent explosion occurs when the core of massive stars becomes iron which can't be fused
  10. 18. this temperature scale is based on zero being the lowest possible temperature
  11. 21. this white dwarf is 25000K and 0.05 times as bright as our sun
  12. 24. these low mass main sequence stars will last for hundreds of billions of years
  13. 27. an element used for fusion at the center of red giants
  14. 29. color of stars with the lowest surface temperatures