Earth's place in the universe

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Across
  1. 2. the part of the moon illuminated by the sun that is visible to Earth
  2. 5. a large space rock
  3. 7. the amount of ___________ on a hemisphere causes seasons
  4. 10. the most famous astronomer to use a telescope
  5. 11. turning on the axis
Down
  1. 1. orbit
  2. 3. half of a planet(north, south, east, west)
  3. 4. the star in our solar system
  4. 6. Sun, Earth, moon
  5. 8. an object in orbit around a planet(moon)
  6. 9. an icy ball of dust in the solar system