This article is about a/an planet in Choushinsei Flashman.

Yellow Star is a planet in the Flash System. It is known as the "cold yellow planet"; it is also the only planet with a ring similar to ones like Saturn. It orbits between the main planet of Flash and Green Star.

Sara was raised on this world after being rescued by the Flash, gaining such a power and tolerance to the cold that seems bizarre to so many, to the point of even exposing her legs in her leotard with no ill effect.