Table 4: Parameters of the best-fitting dusty model. In the acceptable range, we give an indication of the range of values that, while producing a worse fit, still correspond to a model reproducing the data within the photometric uncertainties.
Parameter Value Acceptable range

$t_{\rm sb}$ 1 Myr 1-2 Myr

$T_{\rm in}$ 570 K 550-650 K

$X_{\rm Si}$ 0 <10

$X_{\rm Gr}$ 0.84 0.8-0.9

$a_{\rm min}$ 0.005 $\mu$ m <0.01 $\mu$ m

$a_{\rm max}$ 0.5 $\mu$ m 0.4-0.6 $\mu$ m

q 2.5 2.5-3.0

$r_{\rm lim}$ 2.8 pc 2.8-7 pc

$\beta_{1}$ 0 0-0.5

$\beta_{2}$ 0.5 0-0.5

$\tau_{\rm V}$ 7 7-8

**Table 4:** Parameters of the best-fitting dusty model. In the acceptable range, we give an indication of the range of values that, while producing a worse fit, still correspond to a model reproducing the data within the photometric uncertainties.
Parameter	Value	Acceptable range
$t_{\rm sb}$	1 Myr	1-2 Myr
$T_{\rm in}$	570 K	550-650 K
$X_{\rm Si}$	0	<10
$X_{\rm Gr}$	0.84	0.8-0.9
$a_{\rm min}$	0.005 $\mu$ m	<0.01 $\mu$ m
$a_{\rm max}$	0.5 $\mu$ m	0.4-0.6 $\mu$ m
q	2.5	2.5-3.0
$r_{\rm lim}$	2.8 pc	2.8-7 pc
$\beta_{1}$	0	0-0.5
$\beta_{2}$	0.5	0-0.5
$\tau_{\rm V}$	7	7-8

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