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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System
Parameters
Data sources (Number of stars)
UBV
V
B-V
U-B
732
( 11)
1341
( 27)
Geneva
V
U-B
B-V
U-B1
B2-V1
d
delta
m2
g
UBV CCD
V
B-V
U-B
158
( 563)
161
( 75)
VRIc CCD
V
V-R
R-I
161
( 141)
VIc CCD
V
V-I
161
( 140)
da CCD
V
a
g1-y
Da
37
( 129)
UBV pg
V
B-V
U-B
1
( 129)
2
( 73)
42
( 100)