Intro to Astronomy Terms

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Across
  1. 5. when celestial objects obstruct the view of another
  2. 7. the closest point in orbit
  3. 9. a repeating path around another object caused by gravity
  4. 12. the study of positions and movements that affect human life and the natural world
  5. 14. how elliptical an orbit is
  6. 15. the furthest point in orbit
  7. 17. the combined forces that cause a spherical shape in celestial bodies
Down
  1. 1. degree off the ecliptic an orbit is
  2. 2. Earth, Mars, Jupiter, Neptune
  3. 3. the study of stars and other celestial bodies
  4. 4. the plane by which satellites orbit
  5. 6. reverse
  6. 8. an orbiting object
  7. 10. the time it takes to finish a revolution
  8. 11. What holds us all down.
  9. 13. of or relating to stars
  10. 16. satellites of planets