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Table 2

Coordinates and proper motions of HD 163296.

RA [hh:mm:ss] Dec ..′′]

Hipparcos J1991.25 17:56:21.293 –21.57.21.527
VLA 2011.5 17:56:21.283 –21.57.22.30
ALMA 2012.5 17:56:21.285 –21.57.22.36
pm-ra pm-dec error ellipse
[mas/yr] [mas/yr] [mas mas]

Hipparcos –7.98 –39.21 [0.94 0.51]
this paper –6.8 –38.5 [1.0 1.0]

Notes. Top: right ascension and declination of HD 163296 at the different epochs. Bottom: proper motions with associated error ellipse from Hipparcos measurements and from the least squares interpolation performed in this paper.

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