NGC 3680
UBV CCD observations
No
Ref
V
BV
UB
0032
35
12.941
0.448
0036
35
13.503
0.508
1003
35
17.057
0.661
1005
35
17.319
0.727
2001
35
15.603
1.005
2002
35
15.181
0.579
3001
35
12.804
0.428
4002
35
13.154
0.445
4005
35
15.602
0.646
4007
35
17.385
0.981