Across
- 1. region of dust and comets and the end of the Solar System
- 5. 8th planet
- 8. the append of the Solar System
- 10. 2nd planet
- 15. 4th planet
- 18. 2nd dwarf planet
- 19. In the middle of Mars and Jupiter
- 20. 3rd dwarf planet
- 21. 5th dwarf planet
- 22. 4th dwarf planet
Down
- 2. 7th planet
- 3. the 1st dwarf planet
- 4. 6th dwarf planet
- 6. 7th dwarf planet
- 7. 1st planet
- 9. 3rd planet
- 11. The centre and star of our Solar System
- 12. region of comets and dwarf planets
- 13. 5th planet
- 14. the end of the Heliosphere
- 16. 6th planet
- 17. The largest celestial body in the asteroid belt