Astronomy

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Across
  1. 3. radiant energy of the stars
  2. 4. found at both poles; radiation creates light show
  3. 6. motion of Earth's axis taking 26,000 years
  4. 9. point of balance between two orbiting objects
  5. 10. Earth Moon and Sun aligned, Lg tidal range
  6. 11. accounts for day and night; 24 hours
  7. 13. converts solar energy to chemical energy
  8. 14. low tidal range,Moon Earth Sun at 90 degrees
  9. 15. points toward sun on June 21 (summer)
Down
  1. 1. Earth's protective shield
  2. 2. star Earth's axis is currently pointed at.
  3. 5. conduction, radiation and conduction
  4. 7. one trip around the sun; takes 365 days
  5. 8. points away from sun in July
  6. 12. star which Earth's axis is moving toward
  7. 14. wobbling motion of axis as it processes