Across
- 2. slender threadlike object or fiber
- 3. A system of millions of stars
- 5. distance between waves
- 8. Relating to a Galaxy
- 10. the discharge of gas or radiation
Down
- 1. An instrument designed to make things appear larger
- 4. astronomy around physical nature of stars and other bodies
- 6. an expert in or student of astronomy.
- 7. A celestial revolving around a star
- 9. relating to the universe or cosmos