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
693
( 78)
uvby
V
b-y
m1
c1
136
( 43)
uvby mean
V
b-y
m1
c1
Geneva
V
U-B
B-V
U-B1
B2-V1
d
delta
m2
g
VIc CCD
V
V-I
170
( 60)
UBV pg
V
B-V
U-B
161
( 96)