NGC 581
UBV photoelectric photometry
No
Ref
V
BV
UB
N
0070
464
11.74
+0.20
-0.50
3
0073
464
10.55
+0.20
-0.54
3
0176
464
7.23
+0.29
-0.41
3
0178
464
9.90
+0.24
-0.63
3
0179
464
11.80
+0.20
-0.49
3