What causes equinox?

Related questions

1. Is the longest day of the year the same length all over the world?
2. During what month is there 24 hours of daylight below the Antarctic Circle?
3. How long does equinox last?
4. Is it always a full moon on the equinox?
5. What does the Equinox signify?
6. What is the pagan name for the autumn equinox?
7. What does the equinox mean spiritually?
8. Is equinox always full moon?
9. What's the name of tonight's moon?
10. What does equinox mean in science?

Tags

1. #equinoxes
2. #caused
3. #earth
4. #orbit
5. #crosses
6. #ceaseless
7. #wraps
8. #above
9. #northern
10. #motion
11. #directly
12. #hemisphere
13. #celestial
14. #equinox
15. #enter
16. #equator
17. #solstices