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
909
( 13)
1021
( 30)
1341
( 25)
uvby
V
b-y
m1
c1
195
( 18)
471
( 14)
521
( 19)
uvby mean
V
b-y
m1
c1
ß data
Hbeta
195
( 18)
471
( 14)
521
( 19)
ß mean
Hbeta
Geneva
V
U-B
B-V
U-B1
B2-V1
d
delta
m2
g
WBVR
V
W-B
B-V
V-R
1
( 5)
da
a
Da
21
( 15)
ß CCD
Hbeta
265
( 6)
da CCD
V
a
g1-y
Da
31
( 10)
UBV pg
V
B-V
U-B
2
( 5)