NGC 6819
Washington observations
No
Ref
T1
CM
MT1
T1T2
M51
N
0391
17
1.349
0.869
0.591
2
0428
17
1.401
0.904
0.616
2
0438
17
1.449
0.930
0.582
2
0472
17
1.597
0.956
0.621
1
0685
17
1.275
0.843
0.554
1
0968
17
2.009
1.234
0.873
2
0970
17
2.030
1.337
1.288
2