Solar System Vocab

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Across
  1. 6. an object that orbits another object
  2. 7. the point of orbit where a planet is farthest from the sun
  3. 9. the smallest radius in an ellipse
  4. 11. the path that an object in motion has through space
  5. 13. the motion that an object has around another object
  6. 15. a point of focus in an orbit
  7. 17. the distance between Earth and the sun
Down
  1. 1. a planets orbit that is closer to 1
  2. 2. the constant in gravity relating to the masses and separation of the objects
  3. 3. the envelope of gases around a planet
  4. 4. the movement toward or attraction to something
  5. 5. the amount of time it takes for an object to complete its orbit
  6. 8. the longest radius in an ellipse
  7. 10. the farther away from circular an orbit is
  8. 12. an invisible line on which and object spins
  9. 14. the spinning motion of an object on its axis
  10. 16. The point of obit where a planet is closest to the sun
  11. 18. the curved path a celestial object has around another celestial object