seasons of the earth

3. the appearance of the moon's reflection
4. an imaginary line at which a body rotates
6. phase getting smaller
9. the movement of an object around another object
11. a diagonal path of sunlight
14. either of the two times in the year, the summer solstice and the winter solstice, when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days
15. the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution
16. when the moon is between the earth and sun

1. moon is not visible
2. phase getting bigger
5. a round solid 3d figure
7. earth between sun and moon
8. straight path of sunlight on something
10. the action of rotating around an axis
12. moon is between sun and earth
13. move or cause to move into a sloping position
17. the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length