Earths motion through space/Astronomy

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Across
  1. 3. the imaginary line running through the center of the earth
  2. 6. the law of planetary motion
  3. 7. closest Galaxy to us
  4. 8. Galaxy we live in
  5. 9. the sun and everything that revolves around it
  6. 10. a wobble back and forth
Down
  1. 1. causes the stars to change direction in the sky
  2. 2. holds all of the planets orbit around the sun
  3. 4. black hole center of our galaxy
  4. 5. the star that the earth orbits