NGC 6611

MK spectral classification

NoRefMK
01751044O4 V(f))+O7.5
01971044O6.5 V((f))
02051044O4 V((f))
02461044O7 III(f)
02801044O9.5 V
03141044O7 V
03671044O8.5 V
04011044O6.5 V+O8 V
04121044O9.5 III