The Solar System

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Across
  1. 2. The solid inner core of a comet
  2. 5. A chunk of rock or dust in space
  3. 10. What most of the stars in the HR diagram form
  4. 12. A doughnut shaped region from Neptune to Jupiter
  5. 13. A device that breaks light into colors
  6. 15. A meteoroid in Earth's atmosphere
Down
  1. 1. A spherical region of comets that surrounds is up to 1000 times the distance between pluto and the sun
  2. 3. A meteoroid that hits Earth
  3. 4. The distance light travels in one year
  4. 6. Regions in the solar system with a lot of asteroids
  5. 7. brightness A star's brightness from a standard distance from Earth
  6. 8. brightness A star's brightness as seen from Earth
  7. 9. Imaginary patterens of stars
  8. 11. Clouds of gas and dust form a fuzzy outer layer around this
  9. 14. A dirty snowball the size of a mountain