Since weve now discovered two extended disc dwarf planets (Sedna and 2012 VP113) near perihelia, many-many more may orbit further out toward their slow-speed aphelia where long-period planetesimals spend the vast majority of their orbits. Perihelia of extended disc objects in highly-eccentric orbits may point toward a former solar-system barycenter (SSB) between the Sun and a former companion star that recently drifted away, former companion star since the recently-completed entire-sky WISE survey precludes brown dwarfs, companion stars and additional gas-giant planets to our Sun. The aphelia tails of extended disk trans-Neptunian objects (TNOs) and dwarf planets should point away from the SSB, slung out by the Suns former centrifugal force around the SSB. Similarly, the loss of centrifugal force on the planets of a lost companion star would shrink the planet orbits slightly, heating Earth slightly and perhaps explaining the slight retrograde rotation of Venus, assuming Venus had formerly been in synchronous rotation with the Sun. planetary.org/blogs/emily-lakdawalla/2014/03261345-a-second-sedna-what-does-it-mean.html
Posted on: Thu, 27 Mar 2014 21:16:43 +0000
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