Across
- 1. Remains of low-mass and medium-mass stars
- 5. Stellar distance
- 6. sudden brightening of a star
- 8. star Stars pulled toward each other by gravity
- 9. Specific pattern of stars
- 10. Thought to be the remnants of supernova events
- 12. magnitude Stars brightness as it appears from earth
- 15. Shows the real relationship between absolute magnitude and temperature of stars
- 16. The universe began as a violent explosion
- 20. stars 90% of all stars
- 21. Like stars galaxies are grouped
Down
- 2. Retreating from us at greater speeds
- 3. Stars that get brighter and fainter in a regular pattern
- 4. Dense objects with gravity so strong not even light can escape their surface.
- 7. Stars end in a brilliant explosion
- 11. Stars are so large
- 13. magnitude How bright a star actually is
- 14. Spinning neutron star that appears to give off pulses of radio waves
- 17. large group of stars
- 18. group of very bright stars
- 19. Developing star not yet hot enough to engage in nuclear fusion