CH 25 Beyond Our Solar System

123456789101112131415
Across
  1. 3. group of stars, dust, gas held together by gravity
  2. 6. ___stars high density composed of neutrons
  3. 7. near final stage of star evolution;exhausted most or all nuclear fuel
  4. 8. massive star that has collapsed that gravity prevents the escape of everything, including light
  5. 9. ___magnitude brightness of a star viewed from earth
  6. 12. very large, very bright red giant star
  7. 13. large, cool star of high luminosity
  8. 14. exploding star that increases in brightness many thousands of times
Down
  1. 1. star that explosively increases in brightness
  2. 2. 9.5 trillion km - distance light travels in a year
  3. 4. group of stars originally named for mythical characters
  4. 5. cloud of gas/dust in space
  5. 10. collapsing cloud of gas/dust defined to become a star
  6. 11. ___magnitude true brightness of stars viewed from distance of 32.6 light years
  7. 15. emits radio pulses in very regular periods