Astronomy Puzzle

123456789101112131415
Across
  1. 1. / seventh planet from the Sun is large and gaseous
  2. 3. / a celestial body of hot gases that radiate energy
  3. 5. / a large body in space that orbits a star and does not produce light of its own
  4. 7. / Earth's natural satellite
  5. 9. / a pattern of stars in the sky
  6. 12. / the fourth planet from the Sun and is the second smallest planet in the solar system
  7. 14. / smallest planet, closet to the Sun
  8. 15. / largest planet, 5th planet from the Sun
Down
  1. 2. / sixth planet from the Sun, Saturn is the second-largest planet
  2. 4. / the second planet from the Sun has a dense atmosphere
  3. 6. / third planet from the Sun
  4. 8. system / the collection of eight planets and their moon
  5. 10. / eighth planet from the Sun, no atmosphere, furthest out, and has the great dark spot
  6. 11. years / the distance that light travels in one year
  7. 13. / the path of an object as it revolves around another object