Across
- 4. Sequence Where stars spend most their lifetime
- 5. The distance between the crests of two waves
- 6. Light with a slightly higher frequency than visible light
- 7. The brightness of a star
- 9. Galaxies with a round or egg-like shape
- 11. A cloud of gas and dust where stars are formed
- 13. The center of our galaxy
- 14. Bang A popular theory for how our universe formed
Down
- 1. A galaxy with 2 or more arms
- 2. Used to measure distance in space
- 3. Class A way of classifying stars that uses letters
- 4. The size of a star
- 8. Way Our galaxy
- 10. Galaxies have an irregular shape
- 12. The unit that the temperature of stars get measured by