Collinder 228
MK spectral classification
No
Ref
MK
0004
102
B0.5 Iab
0012
102
B2 Ia
0013
102
B1 Vn
0038
102
O6.5V((f))
0039
102
B0 V
0043
102
B3 IV
0092
102
O6 III(f)
0093
102
B0.5V
0094
102
O8 V
0096
102
B3 III
0097
102
O5 V((f))