ILI

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Across
  1. 3. small rocky or metallic body travelling through space
  2. 4. an icy small solar system body
  3. 7. the steep artificial slope below a forts parapet
  4. 9. type of eclipse that occurs when the moon fully or partially passes between the sun and the earth
  5. 10. condition that is not limited to a specific set of values but can vary infinitely within a continuum
  6. 11. the region of the solar system beyond the planets
  7. 15. or rocky planets are closest to the sun
  8. 16. of techniques in which waves usually electromagnetic
  9. 20. an area of land having a particular characteristic, purpose or use
  10. 22. type of optical telescope
  11. 26. series of many meteors appearing seconds or minutes apart
  12. 28. the outer planets that are made of gas
  13. 30. occurs 2 a year around march and September
  14. 31. part at which planets orbit
Down
  1. 1. making or denoting an orbit around a celestial body
  2. 2. celestial event in which a number of meteors are observed to radiate or originate from one point on the night sky
  3. 5. object the size of a planet but that is neither a planet nor moon or other natural satellite
  4. 6. occurs when the moon passes directly behind the earth onto its shadow
  5. 8. phase of hydrogen in which it behaves as an electrical conductor
  6. 12. event that occurs when an astronomical object is temporarily obscured
  7. 13. apparent motion of a planet as observed from a particular vantage point
  8. 14. solid objects thought to exist in protoplanetary disks and in debris disks
  9. 17. apparent path of the sun on the celestial sphere
  10. 18. circular movement of an object
  11. 19. deviation of curve or orbit from circularity
  12. 21. unit of length
  13. 23. type of magnet in which the magnetic field is produced by electric current
  14. 24. astronomical event that occurs 2 each year
  15. 25. the point of the moon or satellite at which it is nearest to the earth
  16. 27. solid piece of debris from such sources as asteroids or comets and survives an impact with earth
  17. 29. the point in the elliptical orbit of greatest distance from the earth