hip-11486

Its story

12 Trianguli is a white-yellow F0III giant 162 light-years away, two and a half times the Sun's size and around fifteen times more luminous. Its estimated age is 2.19 billion years, and radial-velocity measurements show it drifting toward the Solar System at 25 km/s. It inhabits Triangulum —one of the rare constellations whose shape, three stars sketching exactly what its name announces, is literally unambiguous—.