Across
- 3. has 2 moons
- 5. moon named Weywot
- 8. moon named Actaea
- 10. nearest planet to the sun
- 12. moon named Xiangliu
- 14. smallest dwarf planet
- 17. has 53 confirmed & 29 awaiting confirmation moons
- 18. coldest planet in the solar system
- 19. hottest planet in the solar system
Down
- 1. was discovered on 18 June 2002
- 2. moons named Namaka and Hi'iaka
- 4. biggest planet in the solar system
- 6. we are on it
- 7. moon named MK2
- 9. disqualified from being a planet in 2006
- 11. moon named Vanth
- 13. farthest planet from the solar system
- 15. takes 11,400 years to complete an orbit
- 16. has a moon named Dysnomia