Why Jupiter Does Not Orbit the Sun: The Barycentre Explained
- Instead, it and Jupiter circle a shared center of mass known as the Sun-Jupiter barycentre, a point located approximately 46,000 kilometers beyond the Sun's visible surface, according to...
- In any two-body system, the barycentre is the anchor point around which both objects orbit, determined by their respective masses.
- Space Daily reports that at Jupiter's average distance, this point sits roughly 46,000 kilometers outside the Sun's photosphere.
The Sun does not sit still. Instead, it and Jupiter circle a shared center of mass known as the Sun-Jupiter barycentre, a point located approximately 46,000 kilometers beyond the Sun’s visible surface, according to Space Daily.
A Shift Beyond the Photosphere
In any two-body system, the barycentre is the anchor point around which both objects orbit, determined by their respective masses. The Sun holds the vast majority of the solar system’s mass, but Jupiter is large enough to exert a gravitational pull that drags this balance point away from the Sun’s geometric center.
Space Daily reports that at Jupiter’s average distance, this point sits roughly 46,000 kilometers outside the Sun’s photosphere. The result is a cosmic dance: the Sun moves in a small, tight orbit around the barycentre while Jupiter traces its much larger path.
Dismantling the Stationary Sun Model
The reality is different.
The fact that the barycentre exists outside the Sun’s surface confirms that the solar system is a collection of interacting masses. It is not a static system centered on a single stationary object.