To make a plot
Select one or two photometric systems,
Select one or two parameters,
Select one or two data sources,
Click on "Plot".
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Cluster page
System
Parameters
Data sources (Number of stars)
UBV
V
B-V
U-B
414
( 14)
821
( 9)
1341
( 29)
Washington
T1
C-M
M-T1
T1-T2
M51
27
( 14)
UBV CCD
V
B-V
U-B
376
(4029)
499
( 187)
VIc CCD
V
V-I
375
(2860)
376
(4029)
Washington CCD
T1
C-M
M-T1
T1-T2
C-T1
M51
375
(1562)
UBV pg
V
B-V
U-B
2
( 112)
22
( 127)
182
( 170)