RiSa Astronomy Crossword

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Across
  1. 3. The third planet from the Sun
  2. 4. Earth's natural satellite
  3. 5. A star that suddenly increases in brightness
  4. 7. Planet famous for its rings
  5. 8. Once considered the ninth planet
  6. 11. The largest planet in our solar system
  7. 16. A tool for observing distant objects in space
  8. 17. A cloud of gas and dust in space
Down
  1. 1. The hottest planet in the solar system
  2. 2. The curved path of a planet around a star
  3. 4. Known as the Red Planet
  4. 6. A depression caused by an impact
  5. 9. The star at the center of our solar system
  6. 10. A "dirty snowball" that orbits the Sun
  7. 12. When one celestial body blocks another
  8. 13. A massive system of stars, gas, and dust
  9. 14. A highly luminous object powered by a black hole
  10. 15. A small rocky body orbiting the Sun