Trumpler 15

MK spectral classification

NoRefMK
0002301O9 III
0003301B2 V
0004301B1 V
0007301B2 V
0013301B1 V
0014301B2 V
0015301B1 V
0016301M2 Ia
0018301O9.5 I-II
0023301B2 V
0026301B0 V
0033301A0 V