The Life of a Star

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Across
  1. 2. What stage does a Middle Mass Star stay as for the majority of its life?
  2. 3. What is the last phase of a Middle Mass Star?
  3. 6. What colour signifies the hottest star?
  4. 7. What is the process of Hydrogen atoms bonding to form helium called?
  5. 12. A black hole has an extremely strong __________.
  6. 16. What does a high mass star become if it begins with a mass of 12-15X the size of the sun?
  7. 17. How many kilometers wide is the average neutron star?
Down
  1. 1. How long do Middle Mass Stars usually burn for?
  2. 4. A Black Dwarf is made of _______ and oxygen.
  3. 5. What kind of star is our sun?
  4. 8. A _____ is a large and remote celestial body.
  5. 9. Stars produce _____ and light.
  6. 10. The _________ is used to analyze the pattern of light emitted from individual stars.
  7. 11. What does a high mass star become if it begins with a mass of 25X or more than the size of the sun?
  8. 13. What type of stars burn the longest?
  9. 14. What is the earliest phase of a star?
  10. 15. What is the explosion caused by a High Mass Star?