hip-107119

Its story

11 Cephei is a young orange giant —barely 670 million years old— already over twice the Sun's mass and swollen to twelve times its radius. With a 4.620-degree surface and sixty-one times the solar output, it lights a quiet corner of Cepheus from 182 light-years away. Its fate is plain: a planetary nebula waits on the cosmic horizon, and beyond it the crystalline silence of a white dwarf.