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
513
( 31)
JHK data
J
H
K
J-H
H-K
J-K
86
( 606)
UBV CCD
V
B-V
U-B
323
( 126)
495
(2492)
499
( 55)
550
( 609)
RGU data
G
G-R
U-G
28
( 103)