Almach B is a blue B8V main sequence star. This spectral type implies an effective temperature of 12000 K, a diameter about 3 times that of the sun, a luminosity of about 170 times that of the sun, and a mass about 5 times that of the sun.
Almach C is a white A0V main sequence star. The spectral type implies an effective temperature of 9900 K, a diameter 2.5 times that of the sun, a luminosity of about 50 times that of the sun, and a mass maybe three times that of the sun.
B and C revolve in a 61 year orbit about their common center of mass. The orbit is an elongated ellipse with a semimajor axis of about 32 AU.
Almach B and C currently appear separated by 9.58 arc seconds from A. At the distance of the star system, this corresponds to a separation of at leat 1040 AU or 26 times the radius of the solar system out to Pluto.
Almach B itself has an even closer companion than Almach C that revolves in a 2.67 day orbit.