Astronomy Vocabulary Puzzle

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Across
  1. 3. day defined as the time it takes the earth to rotate 360 degrees
  2. 5. angle created by viewing an object from two lines of view
  3. 6. time of year when the sun strikes either the tropic of Cancer or Capricorn at a right angle
  4. 8. an area on the celestial sphere in which a group of visible stars forms a perceived pattern
  5. 10. there are 60 of these in a degree
  6. 12. 9.46 trillion kilometers
  7. 15. home galaxy
  8. 16. the horizontal angular coordinate from geographic North to locate celestial bodies
  9. 17. spinning of celestial bodies on an axis
Down
  1. 1. continuous change in the orientation of the earth's rotational axis
  2. 2. the orbital plane where all the planets orbit the sun
  3. 4. there are 3600 of these in a degree
  4. 5. 3.26 light years
  5. 7. a point in the sky directly over head
  6. 9. angle from the horizon to a celestial body
  7. 11. orbital motion of planets or satellites
  8. 13. "equal night". The time when the sun strikes the equator at a right angle
  9. 14. 149 million kilometers