Astronomy terms

123456789101112131415161718192021
Across
  1. 5. when the moon is farthest from Earth
  2. 7. season in which the earth is tilted toward the sun
  3. 12. sun-centered model of the solar system
  4. 13. the position where the planet is closest to the sun
  5. 15. earth-centered model of the solar system
  6. 16. when the moon casts a shadow on the earth
  7. 17. season in which the arc of the sun is lowest
  8. 21. the moon phase in which the moon is totally dark
Down
  1. 1. the position where the planet is farthest from the sun
  2. 2. the darkest part of the shadow of an eclipse
  3. 3. when a planet spins on its axis
  4. 4. when the moon is closest to Earth
  5. 6. moon phase just before the full moon
  6. 8. the shape of Earth's orbit around the sun
  7. 9. when just a sliver of the moon is visible
  8. 10. when the Earth casts a shadow on the moon
  9. 11. shadow of an eclipse but not the darkest part
  10. 14. how to calculate the ovalness of an ellipse
  11. 18. when a planet orbits the sun
  12. 19. first day of spring or fall
  13. 20. first day of winter