Across
- 4. elements give off their own light when _____
- 7. medium hot star color
- 8. coolest star color
- 9. a star that has a temperature of about 3000
Down
- 1. tool used to study light from stars
- 2. a star with a temperature above 30000
- 3. this is related to a stars color
- 5. made from bands of different light
- 6. hottest star color