hip-18396

Its story

In Perseus it burns with the cutting blue of hot class B stars, a light that betrays a nuclear furnace far superior to the Sun's. Its glow arrived after a 729-year journey: when it set out, the Christian kingdoms were advancing through the Iberian peninsula and the Mongols were finishing redrawing Asia under the descendants of Genghis Khan. It is a sun young on the cosmic scale, living intensely and making its presence felt even from several centuries of light away.