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Table 6.

Astrometric parameters of the stellar groups.

Stellar μα cos δc μδc σc Nc
group [mas yr−1] [mas yr−1] [mas yr−1]
ϕ1i(μxi, μyi) −5.18 ± 0.06 −2.87 ± 0.06 0.48 ± 0.01 110
Group B −5.21 ± 0.05 −2.81 ± 0.05 0.44 ± 0.01 18
Group C −5.23 ± 0.06 −2.92 ± 0.06 0.40 ± 0.01 13

Notes. Columns give the mean proper-motion components (μα cos δc, μδc), the circular dispersion (σc), and number of members.

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