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
1514
( 13)
2028
( 12)
ß data
Hbeta
330
( 25)
ß mean
Hbeta
Eggen uvby
V
b-y
M1
C1
15
( 36)
Geneva
V
U-B
B-V
U-B1
B2-V1
d
delta
m2
g
DDO data
C4548
C4245
C4142
114
( 14)
Washington
T1
C-M
M-T1
T1-T2
M51
37
( 14)
VRIe data
V
V-R
R-I
68
( 10)
da
a
Da
21
( 42)
UBV pg
V
B-V
U-B
22
( 104)