our solar system

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Across
  1. 2. the fifth planet from the sun and the biggest
  2. 3. a dwarf planet farther from the sun than neptune
  3. 4. closest planet to the sun
  4. 10. a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently that it no longer emits significant heat or light.
  5. 11. a cloud of gas and dust in outer space
  6. 13. fourth planet from the sun
  7. 14. the sixth planet from the sun
  8. 15. a small very dense star that is typically the size of a planet.
  9. 17. second planet from the sun
  10. 18. a ring-shaped nebula formed by an expanding shell of gas around an aging star.
  11. 19. the collapsed core of a massive supergiant star
Down
  1. 1. the eighth planet from the sun
  2. 5. a very large star of high luminosity and low surface temperature
  3. 6. the seventh planet from the sun
  4. 7. a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
  5. 8. cosmic snowballs of frozen gases, rock and dust that orbit the Sun.
  6. 9. our home and the third planet from the sun
  7. 10. a place in space where gravity pulls so much that even light can not get out.
  8. 12. a small rocky body orbiting the sun.
  9. 16. separates the inner and outer planets