**Table 5:** Stellar parameters of three close B3V stars, alpha Ara, alpha Eri and eta UMa.
	Alpha Ara	Alpha Eri	Eta UMa
V	2.9	0.5	1.7
Dist.ⁱ	74.3 $\pm$ 6 pc	44.1 $\pm$ 1.4 pc	30.9 $\pm$ 0.7 pc
$v \sin i$	270 km s^-1	225 km s^-1	150 km s^-1
B-V	-0.17	-0.17	-0.17
V-Kⁱⁱ	0.4	-0.4	-0.5
$R_{\rm eq}$ ⁱⁱⁱ	4.8 $R_{\odot}$	12 $\pm$ 0.4 $R_{\odot}$	4.8 $R_{\odot}$
$R_{\rm pol}$ ⁱⁱⁱ	4.8 $R_{\odot}$	7.7 $\pm$ 0.2 $R_{\odot}$	4.8 $R_{\odot}$

ⁱ Hipparcos distance.
ⁱⁱ From 2MASS photometry.
ⁱⁱⁱ 4.8 is the statistical value for this B3V star, the radius
for alpha Eri is from Domiciano de Souza et al. (2003).

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations
	3 The SIMECA code and the envelope parameters used for the modeling of alpha Ara
	4 Results
	5 Discussion
	6 Conclusion
	References