Across
- 2. Depends on luminosity and distance
- 8. Total amount of light given off from sun
- 11. A small body of matter from outer space that enters the earth's atmosphere
- 12. also called the northern lights
- 13. The layer of the sun that we can see from earth The third planet away from the sun
- 14. all existing matter and space considered as a whole
Down
- 1. The central region where nuclear reactions consume hydrogen to form helium
- 3. A spot or patch appearing from time to time on the sun's surface
- 4. The hottest planet in the solar system
- 5. a fixed luminous point in the night sky which is a large
- 6. a reddish gaseous layer immediately above the photosphere of the sun or another star.
- 7. The outermost layer
- 9. The coldest planet in the solar system
- 10. The star that the earth orbits around
- 12. Small rocky body orbiting the sun