Across: 1. movement of the earth around the sun 6. the curved path of a celestial object 7. half of the celestial spheres (northern and southem) 8. a divisionof each year marked by changes in weather 10. sloping position of the earth on its axis 5 Down: 2. imaginary line that runs from north pole to south pole 3. movement of the earth on its axis 4. hours it takes for the earth to spin on its axis 5. time when day and night are of equal length 9. time when the sun reaches its highest or lowest point​