Planetarium

4. A blanket of air that surrounds some planets and moons.
6. System The system around our Sun, Sol, and similar systems of objects that orbit them.
7. Star Also called Polaris. It remains almost fixed in the northern sky.
9. Any of the 88 areas into which the sky is divided.
10. The spinning of an object on its axis.
11. A large object made of gas that gives off light
13. Planet A planet with a rocky surface, such as the Earth.
15. Giant A planet that does not have a rocky surface.
16. A group of stars; not considered an official constellation.

1. The motion of the Earth and the other objects within the Solar System around the Sun.
2. The explosion of a massive star that has used all of its fuel.
3. A very large group of stars. Our -- is called the Milky Way.
5. A round celestial body that orbits around the Sun
8. System A system of two or more stars.
9. A large hole or depression in a planet or moon,formed by impact.
12. Fusion The process occurring inside stars increasing high pressure and temperature.
14. Giant A large, relatively cool star in the final stages of its life