Across
- 5. having to do with the sun
- 7. an optical instrument to look closer at
- 10. the study of space
- 12. something moving
- 13. a measurement of distance in space
- 16. a group of stars
- 20. the moon blocking the sun
Down
- 1. a man made object to go out in space
- 2. having to do with the moon
- 3. sky or heaven related
- 4. a big type of rock
- 6. one whole orbit around the sun
- 8. anything that can orbit something
- 9. moving in the same direction around the center the middle of something
- 11. a big ball of rock and fire while moving
- 14. the action of rotating around a center
- 15. a celestial object of moving ice and dust
- 17. how to measure
- 18. a imaginary pole in the middle of a satellite anything orbiting around something
- 19. a system of billions of stars