Across
- 3. a small body of matter from outer space that enters earths atmosphere
- 6. a artificial satellite whose orbit is synchronized with that of earth
- 9. a space entirely devoid of matter
- 10. the point in the orbit of a planet or a comet at which it is farthest from the sun
- 11. having or representing the earth as a center
- 13. a small rocky body that orbits a star
- 14. the time when the sun crosses the plane of the earth's equator, making night and day of approximately equal length all over the earth
Down
- 1. any of various groups of stars to which definite names have been given
- 2. science dealing with the material universe outside earths atmosphere
- 4. an alignment of three celestial objects
- 5. a unit of distance used in astronomy 3.26 light-years.
- 7. a star that viewed from a given latitude on earth never sets
- 8. the point in the orbit of a planet or comet at which it is nearest to the sun.
- 12. when the moon blocks the sun or the sun blocks the moon