Across
- 2. An exploding star
- 5. Group of visible stars that form a perceived patter
- 7. Constellation commonly known as "big dipper"
- 10. Distance the light travels in a year
- 12. System of stars, gas , dust and matter
- 13. The galaxy we live in
- 14. Element that makes up to 75% of a star mass
Down
- 1. Energy that travels trough space
- 3. Fundamental particle of light
- 4. A region of space with the most intense gravitational pull
- 6. Radiant power emitted by a star
- 8. System of planets, moons and asteroids that orbit the Sun
- 9. A star that is still forming
- 11. A planet that orbits a star other than our Sun