Earth moon and sun puzzle

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Across
  1. 3. when the moon gets between Earth and the sun
  2. 4. force that pulls things to the ground
  3. 5. icy, small Solar System body
  4. 7. moving around a star
  5. 10. north to south
  6. 11. the gravitationally bound system of the Sun and the objects that orbit it
  7. 12. imaginary line in the middle of the earth
  8. 15. the earth from west to east
  9. 17. the angular distance of a point north or south of the celestial equator.
  10. 19. physically explore or examine
  11. 22. the star at the center of the Solar System.
  12. 23. the mean distance from the center of the earth to the center of the sun.
  13. 27. a celestial body moving in an elliptical orbit around a star.
  14. 28. a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
  15. 29. a liquid, is heated and then travels away from the source, it carries the thermal energy along.
  16. 30. a smaller planet
  17. 32. a tide just after the first or third quarters of the moon when there is least difference between high and low water
  18. 33. a fixed luminous point in the night sky which is a large, remote incandescent body like the sun.
  19. 36. Earth's only proper natural satellite
  20. 37. growing with light until a full moon is reached
  21. 38. rotating around an axis or center.
  22. 39. the point in the orbit of a planet, asteroid, or comet at which it is closest to the sun.
  23. 41. a large planetary embryo that originated within a protoplanetary disc and has undergone internal melting
Down
  1. 1. instrument designed to make distant objects appear nearer
  2. 2. a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward one another
  3. 6. more crushed down oval
  4. 8. the fully shaded inner region of a shadow cast by an opaque object
  5. 9. revolution and rotation
  6. 12. a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.
  7. 13. minor planet of the inner Solar System
  8. 14. the time or date (twice each year) at which the sun crosses the celestial equator
  9. 16. when a perigee coincides with a spring tide
  10. 18. representing the earth as the center
  11. 20. representing the sun as the center
  12. 21. makes things look closer than they really are
  13. 22. a period of the year that is distinguished by special climate conditions.
  14. 24. a group of stars forming a recognizable pattern
  15. 25. small rocky or metallic body in outer space
  16. 26. the act of rising to an important position or a higher level.
  17. 31. a solid piece of debris from an object
  18. 34. have a progressively smaller part of its visible surface illuminated
  19. 35. a moon or planet moves into the shadow of another heavenly body.
  20. 39. the partially shaded outer region of the shadow cast by an opaque object
  21. 40. the point in the orbit of a planet, asteroid, or comet at which it is furthest from the sun.