M5.5III

Best M5.5III standard (southernly accessible also) is 56 Leo

MK73 dagger standard: 56 Leo (=VY Leo = HR 4267) - M5.5III

# Primary standard

56 Leo = VY Leo = HR 4267 = HD 94705 (J1056+0611; V=6.0 var)
   M5.5III: MK73(dagger),Keenan89
   M5III: Adams26,Wilson57,Merrill62
   M6: Pedoussaut62
   M7: Lee47
   MK73 notes "Prob. sl. var."