Tags: Star.
Alpha Trianguli (Alpha Tri α Trianguli α Tri) is the Bayer designation for a binary star in the constellation Triangulum. It has the traditional names Ras al Muthallah (or Mothallah) and Caput Trianguli.Estimates of the combined stellar classification for this system range from F5III to F6IV with the luminosity class of ‘IV’ or ‘III’ indicating the primary component is a subgiant or giant star respectively.
