Solar system planetary celestial body

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Across
  1. 4. one of two ice giants in outer solar system
  2. 5. an object that orbits a planet or something else that is not a star
  3. 6. a rock that falls to earth from space
  4. 9. a small rocky object that orbit the sun
Down
  1. 1. a group of stars that appears to form a pattern
  2. 2. the star at the center of the solar system
  3. 3. a small icy object that orbits the sun and has a long tail of gas
  4. 7. an almost perfect vacuum nearly void of matter and with extremely low pressure
  5. 8. is the only place in the known universe confirmed to host life