The evolution of the jet from Herbig Ae star HD 163296 from 1999 to 2011

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Table 3

Position of knots from Gaussian fit.

Knot	Tracer	Epoch	Position

X-ray knot	X-ray	2003.69	−7.2 ± 1.0′′^a
X-ray knot	X-ray	2011.11	−10.6 ± 0.3′′^a
	Lyα	2011.64	≈− 2′′
	Lyα	2011.64	−4.0 ± 0.2′′
knot B	[S ii] 6731 Å	1999.69	4.3 ± 0.1′′
knot B	[S ii] 6731 Å	2011.64	8.7 ± 0.1′′
knot B2	[S ii] 6731 Å	2011.64	3.3 ± 0.1′′

Notes.

^(a)

The uncertainty is calculated from the variance of the photon position for all photons attributed to the knot.

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