Westerlund 1

MK spectral classification

NoRefMK
0003433B1 V
0004433G0 Ia+
0006433B1 V
0007433A0 Ia+
0008433G0 Ia
0009433Be
0010433B0 III
0011433B1 II
0012433A2 Ia+
0016433A2 Ia+
0020433M7 I
0026433M2 I
0028433B0 II
0031433Be
0032433G5 Ia
0033433B8 Ia
0070433B8 Iab
0071433B8 Iab
0078433B1 II