Stars and Galaxies

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Across
  1. 3. star motion across a line of sight
  2. 7. large hot stars are usually this color
  3. 9. this star property relies on size and temperature
  4. 13. a stars brightness compared with other stars as viewed from earth
  5. 14. large unit for space distance
  6. 16. large supernova remnants
  7. 17. any recognizable pattern of stars
  8. 18. the apparent change in position of a distant object as one's viewing position changes
  9. 19. stars that revolve around each other
Down
  1. 1. a cloud of dust or gas that can be seen against a background of stars
  2. 2. certain notable pattern of stars
  3. 4. star motion along a line of sight
  4. 5. alpha stars are usually the _________________ star in a constellation
  5. 6. high mass stars explode in this brilliant flash
  6. 8. long diagonal band through the HR diagram
  7. 10. stars that change in brightness regularly
  8. 11. low mass stars collapse into a
  9. 12. graph that contains combination of temperature, color, size, and luminosity
  10. 15. a huge mass of billions of stars, dust, etc. held together by gravity