Linked from
The 17 pages that link to Sun, each with the reason it gives.
Escape velocityBroader topic: Its surface escape speed is about 618 kilometers per second.
Solar SystemBroader topic: Its mass dominates the system and anchors the orbits of every planet.
Radiative zoneBroader topic: Its radiative zone extends from the core to roughly 0.71 solar radii.
Solar massBroader topic: Its mass supplies the unit’s defining reference.