Tau7 Serpentis
Tau7 Serpentis, Latinized from τ7 Serpentis, is an A-type star in the constellation of Serpens, 174 light-years from the Earth. It has an apparent visual magnitude of approximately 5.804. It is a well-known Am star, a type of chemically peculiar star with unusually strong lines of heavier elements due to slow rotation and stratification of elements in the star's atmosphere.