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
70
( 172)
173
( 8)
841
( 32)
uvby
V
b-y
m1
c1
96
( 17)
455
( 9)
uvby mean
V
b-y
m1
c1
ß data
Hbeta
96
( 17)
455
( 9)
ß mean
Hbeta
Geneva
V
U-B
B-V
U-B1
B2-V1
d
delta
m2
g
VRIj data
V
V-R
R-I
18
( 10)
UBV CCD
V
B-V
U-B
238
(4078)
251
( 46)
VRIc CCD
V
V-R
R-I
251
( 46)
VRIj CCD
V
V-R
R-I
238
(4078)