Table 3: Astrometric measurements of AB Pic A and b and confidence level estimation that AB Pic b is not a stationary background object.
UT date Separation Position angle Confidence

(mas) ( $^\circ$ ) level

17/03/2003 $5460\pm14$ $175.33\pm0.18$ -

05/03/2004 $5450\pm16$ $175.13\pm0.21$ 3.0 $\sigma$

25/09/2004 $5450\pm14$ $175.30\pm0.20$ 4.7 $\sigma$

**Table 3:** Astrometric measurements of AB Pic A and b and confidence level estimation that AB Pic b is not a stationary background object.
UT date	Separation	Position angle	Confidence
	(mas)	( $^\circ$ )	level
17/03/2003	$5460\pm14$	$175.33\pm0.18$	-
05/03/2004	$5450\pm16$	$175.13\pm0.21$	3.0 $\sigma$
25/09/2004	$5450\pm14$	$175.30\pm0.20$	4.7 $\sigma$

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations
	3 Companionship confirmation
	4 Spectral type determination
	5 Temperature and mass determination
	6 Gravitational collapse or core accretion?
	References