BD-21 4575
[ α=17.3h, δ=-21.7° | M4 | d=421.2 pc ]
TYC 6245-477-1
Figs:
sed
|
limits
I/O:
data
|
model
Post:
fit
|
extra
Ext:
simbad
|
cds
|
cassis
|
finder
|
spitzer
|
mast
|
esasky
|
...
Files
Best fit:
T
star
= 2724 ± 4 K , L
star
= 270 ± 20 L
Sun
, R
star
= 73 ± 3 R
Sun
T
dust
= 800 ± 300 K , R
BB
= 2 ± 2 au , L
disk
/L
star
= 0.04 ± 0.02 , λ
0
= 20 ± 30 μm , β = 1.6 ± 0.9