Interesting about the progressive tilt of the planets being caused by an object in south of the solar system. I might point out the star system of Sirius was the basis of much of the Egyptian religious thought, and that temples were oriented to the Sothic year. There is some thought that Sirius is our binary companion, because it is unchanging in the sky unlike the other fixed stars. The precession of the equinoxes might be the effect of our companion Sirius, and the 24000 year cycle related to our orbit around Sirius. Much more about our solar system than is now known.