About HR 7857
HR 7857 is a trash star. It lies about 433.7 light-years from Earth, sits in the constellation Del, shines at apparent magnitude 6.54 and has spectral type A2Vnn.
Its spectrum reads A2Vnn — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.