Dwarf planets

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Across
  1. 4. small
  2. 7. hours day on Haumea
  3. 8. dwarf
  4. 9. number of dwarf planets
Down
  1. 1. also known as Pluto
  2. 2. largest dwarf planet
  3. 3. has one moon
  4. 5. has a mysterious white spot
  5. 6. Greek opposite is Harmonia
  6. 9. another word for dawrf