C.t. asked me to explain the 12/12 patterns, so it wouldn't look haphazard and arbitrary, or strictly intuitive.
For now, I will stop just prior to the Modernistic 10/12 pattern which went beyond Saturn. Again, I used a numbering sequence, relying on the Hipparchian concept of Aries as Sign #1 and on to Pisces as #12, in Direct-motion.
First, using the fact that the Moon and Sun are unidirectional, they rule only one Sign each, and the planets being bidirectional, rule 2 Signs each.
Then, using the concept of the Heliocentric model, proposed by Aristarchus and known to the astrologers of the Alexandrian scientific community through the tutelage of Hipparchus, I used its most obvious feature, the fixed, fiery Sun, to designate the #5Fixed-Fire sign as its Domicile-sign.
Then, arranging all 7 ancient rulers into their two categories and starting with the faster moving rulers in both:
Sign#4Moon-#5Sun/#6Mercury-#7Venus-#8Mars-#9Jupiter-#10Saturn, and, it comes to a standstill with 10th-sign Capricorn as Saturn's Domicile-sign, with the full sequence bounded by the two signs of Solstice, #s 4&10.
"Solstice" can be generally interpreted as reaching a limit, and stopping: We've run out of planets in the ancient sense. Then comes the word that gave tropical astrology its name: The Greek word "tropikos", turning around, and going in the opposite direction.
So, having stopped at Saturn, and starting back, Saturn gets its 2nd Domicile-sign, #11, followed by Jupiter's 2nd, Sign #12, then #1 for Mars, #2 for Venus, and finally, #3 for Mercury.
And, thus matters stood, until the discovery of a star-like planet, outside the orbit of Saturn, which could be seen without a telescope, but which had been cataloged as a faint star due to its slow movement: The "still, small voice" of the Heavens.