BG 2 AJ

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Across
  1. 4. the outermost shell of a terrestrial planet
  2. 6. measures distance east or west of the prime meridian
  3. 7. refers the object's orbital motion around another object
  4. 11. marks the official start of astronomical summer and the longest day of the year
  5. 12. a layer inside a planetary body bounded below by a core and above by a crust
  6. 14. Projection of Earth's equator into space divides celestial sphere into hemispheres
Down
  1. 1. located at the direct center of the Earth below the outer core
  2. 2. the point at which the path of the sun in the sky is farthest south
  3. 3. two moments when the Sun is above the Equator, equal day-night.orbit repeating path that one object in space takes around another one
  4. 5. The time when the sun crosses equator, equal day and night.
  5. 7. an object's spinning motion about its own axis
  6. 8. liquid layer of the Earth's core, located between the inner core and the mantle
  7. 9. any of several slow changes in an astronomical body's rotational or orbital parameters
  8. 10. measures the distance north or south of the equator
  9. 13. the angle between an object's rotational axis and its orbital axis