Across
- 5. system a collection of planets and their moons that orbit a star
- 7. imaginary line going right through the center of earth from "top" to "bottom"
- 8. an imaginary line around the middle of the planet
- 10. the study of outer space and all of the objects and bodies outside of the Earth's atmosphere, like stars, planets and comets
- 11. can only be viewed during an eclipse; means crown
- 12. the partial or complete blocking of light of one celestial object by another
- 14. first astronomer to use telescope to view planets
- 15. the variation of weather conditions over long periods of time
- 16. when a planet or moon travels around the body it is orbiting one time
Down
- 1. the day-to-day variation of the atmosphere's condition locally
- 2. the largest planet in our solar system
- 3. when a planet or moon spins on its axis one time
- 4. system of millions or billions of stars held together by gravity
- 6. rise and fall of sea levels caused by gravitational forces from the Moon, the Sun, and the rotation of the Earth
- 9. groups of stars forming a pattern that is traditionally named after its shape or similarity with a mythological figure
- 13. innermost layer of the Sun
- 17. all matter in space including planets, stars, and galaxies
- 18. when light from the Sun is hitting the side of the moon facing away from the Earth