hip-80704

Its story

30 Herculis is a variable M-type red giant, also catalogued as g Herculis, whose light slowly rises and falls with the pulsations that sweep through its swollen atmosphere. It sits about 354 light-years away in the western reach of Hercules. Early catalogues marked it as one of the first known semiregular variables —a star that breathes in long, slow cycles, almost indifferent to human haste.