Table 5: Parameters of N 66 obtained by model fits to the observed spectra from the different epochs. $\Delta(\log L)$ is the logarithm of the luminosity, relative to $\log L/L_\odot = 4.78$. Apart from the luminosity scaling, only three different models (A, B, C) are applied. The mass-loss rate is in the usual units, $M_{\odot}~ {\rm yr}^{-1}$.
Epoch $\log \frac{R_{\rm t}}{R_\odot}$ $v_\infty/\frac{\rm km}{\rm s}$ Model $\Delta \log L$ $\frac{R_\ast}{R_\odot}$ $\log \dot M$
1983.3 0.50 2200 A -0.20 0.52 -5.66
1986.3 0.50 2200 A -0.20 0.52 -5.74
1990.6 0.50 2200 A -0.20 0.52 -5.74
1993.9 0.45 2200 B 0.35 0.98 -5.25
1994.7 0.45 2200 B 0.65 1.38 -5.02
1995.0 0.45 2200 B 0.35 0.98 -5.25
1995.3 0.45 2200 B 0.45 1.09 -5.17
1995.7 0.50 2200 A 0.10 0.73 -5.51
1995.9 0.50 2200 A 0.20 0.82 -5.44
1996.0 0.50 2200 A 0.20 0.82 -5.44
1996.9 0.50 2200 A 0.10 0.73 -5.51
1999.0 0.50 1600 C -0.20 0.52 -5.67
2000.1 0.50 1600 C -0.20 0.52 -5.67


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