Census of ρ Ophiuchi candidate members from Gaia Data Release 2

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Table 5

Mean and standard deviation (1σ) of the common sample across different dimensions.

Dimension	Value
α	246.2° ± 0.8
δ	23.9° ± 0.8
ϖ	7.2 ± 0.2 mas
	− 8.0 ± 2.2 mas yr⁻¹
μ_δ	− 25.2 ± 1.9 mas yr⁻¹
X	132.1 ± 3.8 pc
Y	− 15.8 ± 1.4 pc
Z	41.9 ± 2.6 pc

Notes. The Cartesian coordinates are given in the Galactic reference frame (X, Y, and Z point towards the Galactic centre, the direction of the Galactic rotation, and the North Galactic Pole, respectively).

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