Astronomy crossword

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Across
  1. 2. The second smallest.
  2. 8. It is the third planet from the Sun.
  3. 9. It is the 17th satellite, according to the distance from Uranus.
  4. 10. largest in the solar system.
  5. 11. It was the first Kuiper belt object to be discovered.
  6. 13. Own light is a globular cluster of gas that radiates energy around it.
  7. 14. The star at the center of the solar system.
  8. 15. The name of the star comes from the queen of Greek mythology.
Down
  1. 1. Its mass is 95 times greater than that of Earth.
  2. 3. The Sun-Centered System There are little planets and the satellites of comets, meteorites, as well as clouds of dust and gas, which move in orbit under the influence of the Sun's gravity.
  3. 4. The largest moons in the solar system
  4. 5. Demos is named after Demos in Greek mythology.
  5. 6. closest to the sun.
  6. 7. It was discovered by Asaph Hall.
  7. 9. It was discovered in 1655 by Christian Heikens.
  8. 12. satellite of Pluto