NGC 654
Selected MK spectral classification
No
Ref
MKS
0018
296
B15V
0096
296
B1 V
0151
296
B2 II
0308
296
B1 V
0432
296
K2 IV:
0554
296
F5 IA
0555
296
A2 IB
0556
296
B15IV
0559
296
B2 IV
0582
296
B1 V
0583
296
B2 IV