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
435
( 17)
2030
( 19)
DDO data
C4548
C4245
C4142
116
( 5)
da CCD
V
a
g1-y
Da
32
( 41)
UBV pg
V
B-V
U-B
141
( 226)