Basic Astronomical Terms

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Across
  1. 2. scientific study of celestial objects
  2. 3. 206,265 astronomical units
  3. 6. north polar distance
  4. 7. diurnal rotation of the Earth on its axis
  5. 9. point directly beneath the observer
  6. 11. star crosses the local meridian
  7. 15. angle between the celestial equator and the ecliptic
  8. 16. wobble motion
  9. 17. parallels of latitude
  10. 18. a moment in time
Down
  1. 1. sun stands still
  2. 4. April 8, 2020, 10:35 am PST
  3. 5. pedestal of a sundial
  4. 6. regions of the sky
  5. 8. equal night
  6. 10. pattern of stars
  7. 12. study of position and movements of celestial bodies
  8. 13. astronomical almanacs
  9. 14. imaginary belt around the heavens
  10. 17. two extreme points in the orbit of a planetary body about its primary body