Magnetic diffraction Systematic Absences for the group P63'/m'cm' (#193.259) For this space group, BNS and OG settings coincide. Its label in the OG setting is given as: P63'/m'cm' (#193.7.1491)
Values of h, k, l:  h integer, k integer, l integer
Systematic absences for special reflections:
Diffraction vector type: (0 0 l) -> Systematic absence: l any
For l = 1: I = 0 F = (0,0,Fz)
For l = 2: I = 0 F = (0,0,0)
Diffraction vector type: (2*h -h 0) -> Systematic absence: h any
For h = 1: I = 0 F = (Fx,0,0)
For h = 2: I = 0 F = (Fx,0,0)
Diffraction vector type: (h h 0) -> Systematic absence: h any
For h = 1: I = 0 F = (Fx,Fx,0)
For h = 2: I = 0 F = (Fx,Fx,0)
Diffraction vector type: (h -2*h 0) -> Systematic absence: h any