Across
- 3. small chunks of ice and dust revolving around the sun
- 4. planet visible with naked eye
- 7. in solar system every thing revolves around it
- 8. first artificial satellite
- 13. instrument to observe the night sky
- 15. brightest object in night sky
- 17. this planet spins on its side
- 18. planet very close to the sun
- 19. meteoroid making a streak of light
- 20. a dwarf planet with oval shaped orbit
Down
- 1. the plant we live on
- 2. this star appears most stationary to us
- 5. large piece of rock or metal
- 6. largest planet in solar system
- 9. galaxy we belong to
- 10. this planet appears to be like bluish star with binoculars
- 11. easily identifiable constellation in the night sky
- 12. a small body revolving around the bigger body
- 14. second largest planet
- 16. the brightest star in night sky