Across
- 4. Rotates in opposite direction compared to Earth
- 6. Planet with maximum temperature difference
- 9. Largest moon of Uranus
- 10. Lightest element in universe
- 12. Indicates geographic latitude
- 13. Type of telescope used by Galileo
- 14. Second biggest planet of our solar system
- 16. Element first found on Sun
- 17. Name of our Earth's Moon
- 19. Brightest star of our night sky
- 20. Observer's overhead point
Down
- 1. Closest star after the Sun lies in this constellation
- 2. Future pole star
- 3. Olympus Mons is here
- 5. Most famous constellation for its three stars in a straight line
- 7. Also known as zero degree latitude
- 8. Used for navigation in oceans
- 11. Got famous after inserted into new category of Dwarfs
- 15. Gaseous clouds in space
- 18. Zero degree azimuth starts from this direction