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
580
( 32)
DDO data
C4548
C4245
C4142
50
( 7)
Washington
T1
C-M
M-T1
T1-T2
M51
20
( 8)
VRIc data
V
V-R
R-I
301
( 10)
JHK data
J
H
K
J-H
H-K
J-K
7
( 18)
UBV CCD
V
B-V
U-B
152
(2035)
VIc CCD
V
V-I
152
(1814)
1152
(2468)
UBV video
V
B-V
U-B
1
( 94)
UBV pg
V
B-V
U-B
29
( 355)