Across
- 3. how fast a wave travels
- 4. spectum of light
- 8. lowest point of a wave
- 9. the rate of which a wave passes by a point
- 10. highest point of a wave
- 11. the power output of a star
- 14. how to measure how far a star appears to move
Down
- 1. length of one crest to another
- 2. one crest, and one trough
- 5. how fast light travels
- 6. how bright the star appears
- 7. way part of a galaxy, and also a candy bar
- 12. system earth is located in a...
- 13. another solar systems sun