Across
- 2. 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
- 6. the orbiting of one heavenly body around another.
- 7. to decrease periodically in the extent of its illuminated portion after the full moon.
- 8. a planet or star; heavenly body.
- 10. Basin an impact crater that is more than 186 miles (300 km) across.
- 13. It is a conic section formed by the intersection of a right circular cone by a plane that cuts the axis and the surface of the cone.
- 14. Eclipse the obscuration of the light of the moon by the intervention of the earth between it and the sun
- 16. the act or process of applying wax, as in polishing or filling.
Down
- 1. the movement or path of the earth or a heavenly body turning on its axis.
- 3. Any of the large, low-lying dark areas on the Moon or on Mars or other inner planets.
- 4. phase the shape of the illuminated portion of the Moon as seen by an observer,
- 5. either of the two times a year when the sun is at its greatest distance from the celestial equator
- 9. Eclipse the light of the sun by the intervention of the moon between it and a point on the earth
- 11. a central or principal structure, about which something turns or is arranged
- 12. moon the moon when the whole of its disk is illuminated, occurring when in opposition to the sun.
- 15. moon the moon either when in conjunction with the sun or soon after, being either invisible or visible only as a slender crescent.