A rotating body tends to form an oblate spheroid rather than a sphere. Another is that the Earth is slightly deformed into an oblate spheroid. This force deforms the sphere into an oblate ellipsoid. Often the equilibrium shape is an oblate spheroid, as is the case with Earth. Improved types tend to be spheroid, oblate or flat. Most of these concretions are oblate spheroids. However, the Earth's actual shape is closer to an oblate ellipsoid. M19 is one of the most oblate of the known globular clusters. Leaves are elliptical to oblate and thin. In "L'Oblat", Durtal becomes a Benedictine oblate. Sun-synchronous orbits can happen around other oblate planets, such as Mars. Saturn is the most oblate planet in the Solar System, with a flattening of 0.09796. "Lebkuchen" dough is usually placed on a thin wafer base called "Oblate". Many tribal members were Christianized in the late nineteenth century by the Catholic Oblate order. Natsumikan is about the size of grapefruit and oblate in shape.