Across
- 4. How bright a star looks.
- 6. Small, white, hot, dense star.
- 8. Process by which particles combine to form one.
- 12. Distance light travels in one year.
- 13. Brilliant explosion of a supergiant.
- 14. Pattern of stars.
Down
- 1. How bright a star actually is.
- 2. One of the largest stars, formed when a star expands after using up its hydrogen; larger than a red giant.
- 3. The group of stars to which our solar system belongs.
- 5. Brightness of a star.
- 7. Group of billions of stars.
- 9. Everything that exists.
- 10. Star whose size expands after it uses up its hydrogen.
- 11. Cloud of gas and dust in space.