Across
- 1. a large group of stars and their solar system
- 6. a large, spherical object in space that travels around a star
- 8. a group of objects in space revolving around a star because of gravitational attraction to the star
- 9. a scientists who studies space, planets, and stars
Down
- 2. is artificial light that interferes with the light given off by stars
- 3. a cluster of gas that gives off energy and light
- 4. the galaxy that contains Earth, our suns, and all of its solar system
- 5. a device for viewing distant objects by focusing light rays with mirrors or lenses
- 7. the path an object in space takes to travel around another object