Across
- 2. hottest color of stars
- 3. process by which stars give off energy
- 5. spectrum showing an object moving towards Earth
- 7. spectrum showing an object moving away from Earth
- 11. star that suddenly becomes brighter
- 12. motion as it appears from Earth
- 14. apparent shift in an object when viewed at different points
- 15. distance light travels in 1 year
- 17. a very luminous object that produces energy at a high rate
- 19. large celestial body composed of gas & gives off light
- 20. small, hot, dim star that is leftover from stars
- 21. what most stars are considered
Down
- 1. object so massive not even light can escape
- 4. very large & luminous stars
- 6. the beginning point of a new star
- 7. coolest color of stars
- 8. graph that shows the pattern of stars with brightness and temperature
- 9. large cloud of gas and dust in space
- 10. star that is very large & bright
- 13. collection of stars, dust & gas bound together by gravity
- 14. rapidly spinning neutron star
- 16. brightness of a object in space
- 18. star collapsed under gravity forming neutrons at its core