Across
- 2. which stars are the hottest stars on the HR diagram?
- 4. How many galaxies are there?
- 9. people born between november 22 and December 21
- 11. a galaxy that doesn't have a distinct shape
- 12. what is it called when the sun reaches the center of the universe?
- 13. the name of the man that proved the universe was expanding
- 15. how galaxies are named
- 17. a galaxy that is that of irregular shape
- 20. people born in July 23 and August 22 are considered what?
- 21. how many years until andromeda and the milky way collide?
Down
- 1. the milky way has an invisible what?
- 3. a galaxy that is featureless and smooth
- 5. spiral galaxy with a bar shaped structure
- 6. galaxy in which the stars and clouds are circular
- 7. the name of our galaxy (barred)
- 8. what theory is the creation of the universe?
- 10. Galaxy re-found in 1612 by a german astronomer(spiral)
- 14. a galaxy that is 600 million light years away, and is a elliptical galaxy
- 16. how many mirrors does the hubble telescope have?
- 18. The hubble telescope found the what of the universe?
- 19. the milky way and andromeda are doing what?