Sea Of Possibilities

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Across
  1. 3. Where sky and sea meet
  2. 6. Also known as the North Star
  3. 8. When one celestial body blocks another
  4. 10. Orbits a star, can be rocky or gaseous
  5. 11. Small rocky body orbiting the sun
  6. 12. Distance light travels in a year
  7. 14. Icy object with a tail
  8. 16. A cloud of dust and gas in space
Down
  1. 1. Earth's natural satellite
  2. 2. Tool for finding direction
  3. 4. A huge system of stars, like the Milky Way
  4. 5. Tool sailors use to measure angles between stars and horizon
  5. 7. Luminous ball of gas in space
  6. 9. A belt of constellations used in astrology
  7. 13. Compass direction of a celestial object
  8. 14. Nautical map
  9. 15. Our closest star