NGC 6530
UBV photoelectric photometry
No
Ref
V
BV
UB
N
0007
469
5.966
+0.027
-0.895
2
0009
469
7.094
-0.007
-0.867
2
0045
469
7.675
+0.834
+0.153
2
0085
469
8.572
+0.111
-0.744
2
0118
469
6.866
+0.099
-0.834
2