Galaxies & the Universe

123456789101112131415161718192021
Across
  1. 2. hottest color of stars
  2. 3. process by which stars give off energy
  3. 5. spectrum showing an object moving towards Earth
  4. 7. spectrum showing an object moving away from Earth
  5. 11. star that suddenly becomes brighter
  6. 12. motion as it appears from Earth
  7. 14. apparent shift in an object when viewed at different points
  8. 15. distance light travels in 1 year
  9. 17. a very luminous object that produces energy at a high rate
  10. 19. large celestial body composed of gas & gives off light
  11. 20. small, hot, dim star that is leftover from stars
  12. 21. what most stars are considered
Down
  1. 1. object so massive not even light can escape
  2. 4. very large & luminous stars
  3. 6. the beginning point of a new star
  4. 7. coolest color of stars
  5. 8. graph that shows the pattern of stars with brightness and temperature
  6. 9. large cloud of gas and dust in space
  7. 10. star that is very large & bright
  8. 13. collection of stars, dust & gas bound together by gravity
  9. 14. rapidly spinning neutron star
  10. 16. brightness of a object in space
  11. 18. star collapsed under gravity forming neutrons at its core