To make a plot

Select one photometric system,

Select two parameters,

Select one data source,

Click on "Plot CMD".

Click on "Get parameter".

Select parameters for the Isochrones,

Click on "Plot iso".

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System	Parameters	Data sources (Number of stars)

UBV	V B-V U-B	1341 ( 24)
VRIj data	V V-R R-I	107 ( 10)
UBV CCD	V B-V U-B	86 (3000) 290 ( 572) 438 (2319)
VRIc CCD	V V-R R-I	290 (1095)
VIc CCD	V V-I	273 ( 477) 290 (1099) 438 (2532)
UBV pg	V B-V U-B	1 (1110) 2 ( 174) 7 ( 99) 10 ( 90)