Rotation and Revolution

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Across
  1. 4. The longest day of the year
  2. 8. An orbit that is not circular, but has two focal points.
  3. 13. 0 km/hour
  4. 16. The shift in on position of nearby objects on a background due to a change in viewing position.
  5. 17. The shortest day of the year
  6. 18. The spinning of the Earth on it’s axis every 24 hours.
  7. 19. The position when a planet is closest to the sun on its elliptical orbit.
  8. 20. The date of equal hours of day and night on October 21.
  9. 21. A The axis of the Earth points towards this star in the northern hemisphere
  10. 22. The movement of a planet around the Sun.
Down
  1. 1. A line of longitude every 15 degrees.
  2. 2. The position when a planet is farthest from the sun on its elliptical orbit.
  3. 3. The date of equal hours of day and night on March 21.
  4. 5. Foucault Pendulum, Day and Night, Coriolis Effect
  5. 6. Depends on the distribution of mass and rotation rate of a spinning object
  6. 7. (1851) The shift in direction of a pendulum due to the rotation of Earth. 11 degrees/ hour.
  7. 9. Mass. 1300 km/hour
  8. 10. The starting point for standard time zones in Greenwich, England
  9. 11. The imaginary line between the poles about which the Earth rotates.
  10. 12. 1690 km/hour.
  11. 13. The time difference of one hour for every 15 degrees longitude.
  12. 14. 24 hours
  13. 15. The plane that contains the Earth’s orbit