Earth Seasons

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Across
  1. 3. The moment when the Sun crosses the celestial equator traveling in a northward direction, on about March 21 in the Northern Hemisphere. The amount of daylight and darkness on this day are about equal.
  2. 7. The projection of the Earth’s geographic north pole into space
  3. 10. The North Star, the star very near the North Celestial Pole
  4. 12. Also referred to as the NorthSourthern Tropic, this is the most southerly circle of latitude on Earth at which the Sun can be directly overhead. It is approximately 23.5º South latitude
  5. 13. The projection of the Earth’s equator into space.
  6. 14. The difference between the axis of rotation and the perpendicular to the ecliptic plane
  7. 15. A mathematical shape that looks like a flattened circle. Orbits are elliptical.
  8. 16. The point in the orbit of a planet, asteroid, or comet at which it is furthest from the Sun
Down
  1. 1. The plane of the Earth's orbit around the Sun.
  2. 2. The moment when the Sun reaches its greatest distance north of the celestial equator, on about June 21 in the Northern Hemisphere. The day of the year with the longest amount of daylight.
  3. 4. The tendency of a gyroscope or other spinning body to have a stable axis of rotation
  4. 5. The moment when the Sun reaches its greatest distance south of the celestial equator, on about December 22 in the northern hemisphere. The day of the year with the shortest amount of daylight.
  5. 6. A diagram showing the position of the Sun in the sky as seen from a fixed location on Earth at the same mean solar time, as that position varies over the course of a year. The diagram resembles a figure eight.
  6. 8. Also referred to as the Northern Tropic, this is the most northerly circle of latitude on Earth at which the Sun can be directly overhead. It is approximately 23.5º North latitude
  7. 9. The point in the orbit of a planet, asteroid, or comet at which it is closest to the sun
  8. 11. The moment when the Sun crosses the celestial equator traveling in a southward direction, on about September 22 in the Northern Hemisphere. The amount of daylight and darkness on this day are about equal..