Across
- 3. The measure of the amount of light a star gives off
- 7. largest type of star in a high mass star
- 8. theory on how the universe came to be. This theory states that after an explosion the universe began to expand everywhere at once
- 13. they layer upward of the photosphere
- 14. patterns of stars in the night sky
- 16. layer of the sun in which light is given off
Down
- 1. after supernova the star only has neutrons in the core
- 2. large group of stars, gas, and dust held together by gravity, houses planets
- 4. A measure of the amount of light received on Earth
- 5. colder and darker areas on the sun
- 6. large cloud of gas and dust
- 9. large area of gravity that no light can escape happens after supernova
- 10. late stage in a main sequence stars cycle
- 11. last stage of a star that is low massed
- 12. largest layer of the sun
- 15. distance light travels in a year