Astronomy Crossword

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Across
  1. 3. Known for it's iconic rings.
  2. 8. A person who studies celestial objects and phenomena.
  3. 10. Galaxy, which contains over 100 billion stars.
  4. 11. A star, planet, or other natural object in space.
  5. 13. A system of organizing time based on the cycles of the sun and moon.
  6. 14. A group of planets that circle one or more stars.
Down
  1. 1. Gas giant planet with the largest number of moons in our solar system.
  2. 2. Fourth planet from the sun.
  3. 4. An instrument used to observe distant objects in space.
  4. 5. A region in space with a gravitational pull so strong that nothing can escape it.
  5. 6. Second planet from the sun.
  6. 7. A group of stars that form a pattern in the night sky.
  7. 9. A massive system of stars, gas, and dust held together by gravity.
  8. 12. Planet known to support life.
  9. 15. Emits their own light and heat.