hip-108875

Its story

21 Pegasi is a hot blue B-type star kindled some 630 light-years away, at the reach of the Winged Horse. Its surface reaches temperatures far higher than the Sun's and pours out the sharp, near-violet light typical of the youngest and most massive stars. The light now crossing Earth's atmosphere set out toward the end of the fourteenth century —the years Europe's great Gothic cathedrals were being completed— and only now resurfaces in northern autumn.