Is the gravitational center of the solar-system relative to planetary position? Google did not work for me this time, so I'm trying here instead. Light-speed is finite and speed-of-gravity is said to be the same as speed-of-light. So the sun's location is, when observed from Earth, trailing 8 minutes behind it's 'true' location ('True' as meaning the sun's and Earth's location if observed from equal distance to both, such as a triangulated position above or below their orbital-plane) Given that the light/gravity from the sun takes longer to reach more distant planets, than closer planets, the trailing position of the sun would be greater in time for distant planets than closer ones. Saturn, for example, is 80 minutes from the sun, or 10 times that of the earth. So does this mean Saturn is orbiting a center-of-the-solarsystem that is trailing 10 times behind the center the earth is orbiting? If gravity spreads at the speed-of-light, then logically, the planets must each observe a different center (Location of the sun) Apparently the orbits work in reality, but if we were to observe the solar-system from above or below the orbital-plane (Think a 90 degrees vertical position above the sun. Similar to if you watch a record on a record-player from exactly above it), then how can Saturn orbit the same center as the earth, if Saturn is 'seeing' this center with an 80 minutes delay? What don't I get here, since the orbit-aspects of the solar-system clearly appears to work in reality? Thanks. A little extra: According to what I can find via google, it seems the solar-system is, as an entirety, moving perpendicular to its plane (So like a record moving up or down the record-player's center-pin) and not side-ways (Like a flying disc you throw) This would of course make the sun appear as a non-moving center to all planets at all distances along the orbital-plane (And only shift its location 'vertically', compared to the plane) Does this play a part of some kind in producing orbital stability? Like a table-top spinner.