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
129
( 18)
547
( 85)
677
( 26)
1381
( 29)
1501
( 132)
uvby
V
b-y
m1
c1
373
( 67)
uvby mean
V
b-y
m1
c1
Geneva
V
U-B
B-V
U-B1
B2-V1
d
delta
m2
g
da
a
Da
12
( 67)
da CCD
V
a
g1-y
Da
38
( 167)
UBV pg
V
B-V
U-B
43
( 473)
44
( 202)