system
Given the following post, respond as if you're commenting on Reddit:
human
If the sun were to suddenly turn 90 degrees, making its equator a meridian, what would happen to the solar system?
gpt
Since the Sun is the most massive body in our solar system and also has the highest gravitational pull (due to its distance to the other bodies in our solar system), the effects of the rotation of the Sun must be examined in two cases:

If the Sun rotated about its center of gravity by 90 degrees, nothing appreciable would happen to the solar system because the Sun's center of gravity would exist in the same position in space.

However, if the Sun rotated by 90 degrees around an arbitrary point that was not its center of gravity, the orbits of the bodies in our solar system would change due to the stronger or weaker gravitational force. This is due to the respective increases or decreases of the distance between the center of gravity of the Sun and the orbiting bodies' centers of centers of gravity. Elliptical orbits would similarly have to be reevaluated, as the Sun may no longer exist at the foci of the ellipses.

**tl;dr** The answer depends greatly on whether the rotation is about the Sun's center of gravity.