hip-38438

Its story

A blue variable giant burns in Carina, the keel of the austral celestial ship. Its light set out around the year 689, when the Umayyad caliphs were spreading Islam across North Africa and China's Tang dynasty was living one of its most fertile cultural periods. The class B star, intensely hot, does not stand still: its brightness shifts in small oscillations that betray the instability typical of young giants.