V* V2139 Sgr
[ α=19.3h, δ=-18.2° | M3III | d=855.3 pc ]
HD 181339 , TYC 6301-1368-1
Figs:
sed
|
limits
I/O:
data
|
model
Post:
fit
|
extra
Ext:
simbad
|
cds
|
cassis
|
finder
|
spitzer
|
mast
|
esasky
|
...
Files
Best fit:
T
star
= 2595 ± 4 K , L
star
= 2900 ± 600 L
Sun
, R
star
= 270 ± 30 R
Sun
T
dust
= 250 ± 50 K , R
BB
= 70 ± 30 au , L
disk
/L
star
= 0.0036 ± 0.0007 , λ
0
= 15 ± 3 μm , β = 1.3 ± 0.4