interpersonal

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Across
  1. 5. Formulated a Sun-centered model of the Universe (10)
  2. 6. Jupiterian moon (2)
  3. 11. Sign co-ruled by Saturn (8)
  4. 12. The element Saturn mainly consists of (8)
  5. 13. Author of "Tetrabiblos" (7)
  6. 14. Opposite of sweet (6)
  7. 15. Planet with the Great Red Spot (7)
  8. 16. Sign co-ruled by Jupiter (6)
  9. 18. Sign ruled by Jupiter (11)
Down
  1. 1. Sign ruled by Saturn (9)
  2. 2. One who repairs pipes (7)
  3. 3. What Saturn's rings are made of (6)
  4. 4. Quality of Jupiter (10)
  5. 5. Social unit with commonality, such as place or characteristic (9)
  6. 7. The element Jupiter mainly consists of (8)
  7. 8. Male equivalent of Queen (4)
  8. 9. Saturn's two-toned moon (7)
  9. 10. Quality of Saturn (9)
  10. 12. The element Saturn mainly consists of (6)
  11. 17. Planet with rings of small ice and rock particles (6)