NOTE: THIS PAGE IS ONLY A SPECULATION, ITS ONLY A SPECULATION! :
The visible solar system from Sun to Saturn has its invisible counterpart which is smaller and of course much farther. Both halves our solar system have seven main bodies; one solar or sub-solar, four terrestial or sub-terrestial, and two giants or sub-giants, making six different classes in all.
4 major planets and the Sun's binary are out there, just waiting to be found.
The Sun in system A corresponds with its binary in system B. Mercury corresponds with a tiny as yet unknown planet closest to the binary. Venus corresponds to another unknown body second from the binary. Earth corresponds to a 3rd unknown planet and both are central to both systems with three bodies on either side of them. Mars corresponds to another unknown planet the Asteroid belt to the Kuiper belt (Ceres and Pallas to Pluto and MakeMake), Jupiter to Neptune, and Saturn to Uranus (Saturn's rings were discovered in 1610 by Galileo and are easily visible to a telescope, but Uranus's rings were discovered in 1977 and are invisible through a telescope, they were discovered when Uranus occulted a star).
Between Saturn and Uranus is the dwarf planet Chiron(tiny white dot), which may be the actual mid-point(numerically) of our solar system, separating the traditional visible(to the naked eye) half of our solar system from the modern invisible half.
The seven bodies in system A are successively proportionate in size to the seven bodies in system B; Saturn is larger than Uranus, Jupiter than Neptune, Mars than ?1, Earth than ?2, Venus than ?3, Mercury than ?4, and Sun than its binary. If the pattern holds, the next two significant bodies beyond Eris must be equal to or smaller than Pluto with orbits in the thousands of years(Sedna?).
The green lines and arrows indicate traditional astrological links(A) in terms of opposition, and their modern counterparts(B). Folding B over A results in a perfect match-up in terms of traditional to modern correspondences of the planets (on a heliocentric level I think)
A: 1. Sun 2. Mercury 3. Venus 4. Earth 5. Mars 6. Jupiter 7. Saturn
B: 1. Tyche 2. ? 3. ? 4. ? 5. ? 6. Uranus 7. Neptune
Result: 12 major Planets and 2 suns