Stator part having a fin, in a turbine engine

A stator part of a turbine engine, the stator part comprising:

• a platform defining a wall of a gas flow stream,
• a first blade
• a second blade, and
• a fin comprising a leading edge and a trailing edge,
• the fin extending from the platform into the gas flow stream radially relative to an axis of the turbine engine, the fin facing an upper side of the first blade and a lower side of the second blade,
• the leading edge comprising a leading point located on the platform, a radial leading plane passing through the axis and the leading point, a tangent to the leading edge at the leading point extending from the platform into the gas flow stream between the first blade and the radial leading plane,
• the trailing edge comprising a trailing point located on the platform, a radial trailing plane passing through the axis and the trailing point, a tangent to the trailing edge at the trailing point extending from the platform into the stream between the second blade and the radial trailing plane.