Stargazers

2. Hotter stars look bluish ___________.
6. Earth's closest star.
8. Another name given to astronomers.
10. An instrument used by astronomers to look at stars.
11. A place with a circular room in which people can find out about stars, constellations and planets.
12. Earth belongs to this galaxy.

1. The distance light travels in a year.
3. Some stars seem to ___________, which is an effect caused by Earth's atmosphere.
4. A thick layer of air surrounding Earth.
5. A group of bright stars.
7. This is made up of many billions of stars.
9. Cooler stars look ___________.
13. Warmer stars look ___________.