NGC 6231

MK spectral classification

NoRefMK
0113578B1.5 IV e+shell
0206578O9.5 V(n)
0226578B1 V: + B1 V:
0234578O9.5 III
0268578B2 V: + B2 V:
0288578B1 V
0334578B1 V
0349578B1 V
0353578B0.5 V
0378578B0.5 V
0403578B1 V
0434578O9.5V
0486578B1 V(n)
0505578O9 IV
0521578B0.5 V
0571578O7 III: f:
0615578O8.5 III
0651578B1 III
0712578B1 V(n)
0853578O9 IV
0854578WC7
0855578B0 Iab
0856578O7 Ib:(f)
0857578O9 Iab p
0858578O6 III(f)
0862578O9 III