The Sun dominates the motions of the Solar System because of its dominant mass

    Figure: The Sun dominates the motions of the Solar System because of its dominant mass

    Caption: The Sun (symbol ☉) dominates the Solar System motions.

    Note, the Sun's mass (solar mass M_☉ = 1.98855*10**30 kg) is 99.86 % of the Solar System's mass (Wikipedia: Solar System). So the Sun dominates both the inertia and gravitational field of the Solar System, and thus dominates the Solar System motions.

    Credit and/or file tracking information follows to the divider line:

    Credit/Permission: © David Jeffery, 2003 / Own work.
    Image link: Itself.
    Local file: local link: sun_dominator.html.
    File: Sun file: sun_dominator.html.