MW LG VSC

123456789101112131415161718192021222324
Across
  1. 2. time it takes an object to orbit a galaxy
  2. 4. Part of the electro-magenetic spectrum we can see
  3. 6. The central part of the Milky Way has this protrusion
  4. 7. is credited with discovering the MW
  5. 9. nebular galaxy, up to 1 trillion stars
  6. 10. the longest of the arms of the MW
  7. 11. the name of the black hole in the MW
  8. 12. Closest galaxy to Earth
  9. 16. UV-A, UV-B, and UV-C
  10. 17. discovered the shape of the Milky Way
  11. 18. takes 230 million years to complete 1 orbit of MW
  12. 19. first to suggest the MW is made of stars
  13. 21. a smaller galaxy with up to 1 million stars
  14. 24. point of no escape of a black hole's gravitational pull
Down
  1. 1. What does AGN stand for?
  2. 3. are clouds of interstellar gas and dust
  3. 5. group of stars, gas, dust shares mutual gravitation
  4. 6. MW is this type of galaxy
  5. 8. among the brightest AGN objects out there.
  6. 13. location of our solar system in the MW
  7. 14. Our galaxy has up to ____ stars
  8. 15. Greeks called it the Milky Circle
  9. 20. rays strongest type of radiation, kills most life
  10. 22. The central part of the Milky Way
  11. 23. ring of dark matter, gas,stars surrounding galaxy