Planets

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Across
  1. 2. They go around the Sun
  2. 4. The planet with ring
  3. 5. The natural satellite of the Earth
  4. 7. The brightest star
Down
  1. 1. The planet closest to the Earth
  2. 2. No longer a regular planet
  3. 3. The planet on which we live
  4. 5. The hottest planet
  5. 6. The coldest planet