Decan

Columns: Sign | First Decan ruler ( 0 - 9.999 deg . ) | Second Decan ruler ( 10 - 19.999 deg . ) | Third Decan ruler ( 20 - 29.999 deg . )
Aries | Mars | Sun | Jupiter | Taurus | Venus | Mercury | Saturn | Gemini | Mercury | Venus | Saturn | Cancer | Moon | Mars | Jupiter | Leo | Sun | Jupiter | Mars | Virgo | Mercury | Saturn | Venus | Libra | Venus | Saturn | Mercury | Scorpio | Mars | Jupiter | Moon | Sagittarius | Jupiter | Mars | Sun | Capricorn | Saturn | Venus | Mercury | Aquarius | Saturn | Mercury | Venus | Pisces | Jupiter | Moon | Mars

Example questions:
What is the second decan ruler of the Virgo and Libra sign that has a symbol based on the Scales of Justice held by Themis ? | What is the first decan ruler of the Gemini sign represented by the twins Castor and Pollux , known as the Dioscuri ? | What is the second decan ruler of the Virgo and Libra sign also known as the Archer ? | What is the first decan ruler of the Aries sign spanning the first 30 degrees of celestial longitude ?

Answers:
Saturn | Mercury | Saturn | Mars